How Many Grams Are in a Cup of All-purpose Flour?

1 cup works out at 120 grams of all-purpose flour. Everything below is that one figure scaled, amount by amount.

Cups to grams: full chart

The same figures continue for bigger quantities:

A few amounts worth knowing by heart

1 cup is 120 grams of all-purpose flour. Working from 1 cup is 120 grams of all-purpose flour, 1 scales to 120. The step from here to 2 cups is 120 grams. Written into a method, 1 cup reads as 120 grams and nothing else has to change.

2 cups is 240 grams of all-purpose flour. 2 of these makes 240, counting from the 1 cup figure of 120 grams. Three times this is 720 grams, and ten times is 2,400 grams. On a shopping list it is the 240 grams that decides the packet, not the 2 cups.

3 cups is 360 grams of all-purpose flour. Take the 1 cup figure of 120 grams and multiply by 3 to get there. Per single unit that is 120 grams, the ratio every row on this page is built from.

On a shopping list it is the 360 grams that decides the packet, not the 3 cups. 4 cups is 480 grams of all-purpose flour. Take the 1 cup figure of 120 grams and multiply by 4 to get there. A quarter of it comes to 120 grams and three quarters to 360 grams.

Written into a method, 4 cups reads as 480 grams and nothing else has to change. 6 cups is 720 grams of all-purpose flour. Half this amount, 3 cups, comes to 360; double it and you are at 1,440.

Add the same again and you are at 1,440 grams; take one away and you are back to 600 grams. 8 cups is 960 grams of all-purpose flour. That is 120 multiplied by 8, since 1 cup is 120 grams of all-purpose flour.

Per single unit that is 120 grams, the ratio every row on this page is built from. 12 cups is 1,440 grams of all-purpose flour. 12 of these makes 1,440, counting from the 1 cup figure of 120 grams. The step from here to 13 cups is 120 grams.

16 cups is 1,920 grams of all-purpose flour. Working from 1 cup is 120 grams of all-purpose flour, 16 scales to 1,920. Three times this is 5,760 grams, and ten times is 19,200 grams.

How to work it out without a calculator

To go from cups to grams, multiply by 120. One cup is 120 grams. Scale the amount up or down and the same step still works. Going back the other way, one gram returns 0.008 cup. Neither unit depends on how tightly the ingredient is packed.

Following it through once

Say a recipe you are halving asks for 3 cups, and your equipment is only marked in grams. Take the one-cup figure of 120 grams and apply it 3 times: 360 grams. That is the number you want on the jug.

The weight of flour per cup is what makes this number what it is.

Why weight and volume part company here

Two cups of equal size can differ in weight by half again, because a cup measures space. all-purpose flour comes in at 120 g a cup against 237 g for water — 49 per cent lighter — and the chart is that figure scaled.

From the other end, it takes 3.78 cups of all-purpose flour to reach a pound, and a tablespoon of it is 7.5 g. Neither figure carries over to anything else.

Weight per cup for common ingredients

Across those rows cocoa powder is the lightest at 85 g to the cup and honey the heaviest at 340 g, a spread of 4 times. That spread is the whole reason a cup figure means nothing until the ingredient is named.

A pound gives 5.34 cups of cocoa powder but only 1.33 cups of honey. Measuring one by the cup when the recipe meant the other puts the batch out by that whole margin.

The rows are level cups. Two cooks who fill the cup differently will land on different weights from the same row, and neither of them is misreading it.

What the answer depends on

The ingredient decides the answer here, not the recipe. Swap flour for sugar and the same cup weighs sixty per cent more. Any figure quoted without naming the ingredient is incomplete.

Anything that changes how the ingredient sits in the measure changes the answer with it.

Going the other way: grams to cups

Reading the table backwards works because the ratio is fixed: 120 grams per cup one way, 0.008 cup per gram the other.

Half of one gram is 0.004 cup, and a quarter is 0.002 cup.

How to measure this accurately

A cup that has been shaken level is not the same as one swept level with a knife. Shaking settles the contents; sweeping does not.

Where a recipe lists both a volume and a weight, they were not measured on the same day by the same person. The weight is the one that survives being copied.

The same cup of the same ingredient can vary by a fifth depending only on how it got into the cup. Nothing about the ingredient changed; only the air trapped in it did.

The packing problem is why two cooks measuring “one cup” of the same ingredient can be twenty per cent apart. A scale sidesteps it.

Rounding: when it matters

Round the same way every time you make the dish. Consistency beats accuracy here, because a result you can repeat is a result you can adjust next time.

Round the final answer and never the figures feeding into it. One rounding at the end is a small error; three on the way there compound into something you can taste.

Soups, stews and braises forgive almost any rounding. Bread, pastry and cake do not — they depend on the ratio of flour to liquid, and a tenth either way changes the texture.

A convenient number costs little on a single quantity and adds up quickly once a recipe is doubled or tripled. Round late, not early.

The mistake that shows up most

Carrying a figure across ingredients. A weight per cup is a property of the thing in the cup, so a number learnt for one ingredient is simply wrong for the next.

Assuming every ingredient behaves like water. Water is the one case where a fluid ounce and an ounce nearly coincide, which is exactly why the habit forms and exactly why it breaks on flour, oil and honey.

Halving a weight but not the volume it was converted from. Once a recipe mixes the two kinds of measure, scaling has to be done on one of them and converted afterwards.

Where this comes up

Most recipes are written for one system and cooked in another. American recipes measure by cup, European ones by gram, and anything from a bakery measures by weight. Knowing that 1 cup is 120 grams is what lets you cook from any of them.

It comes up in the shop as often as at the stove: 1 cup is 120 grams is what decides whether the packet on the shelf is actually enough.

Anyone cooking along with a video is converting on the fly. 1 cup is 120 grams is worth having settled before the pan is hot.

Translating a recipe usually leaves the units alone, so 1 cup is 120 grams is the part still left to work out.

By the spoon and the part-cup

A scale earns its place above about 3 g. Under that, the step size of the scale is a bigger error than the spoon ever was.

If you are scaling the recipe

Half of 1 cup is 60 grams of all-purpose flour. Double it and you have 240 grams; triple it and you are at 360 grams. A batch cut to a quarter needs 30 grams.

Multiply or divide the whole line at once rather than converting each step; the answer is the same and there is less to get wrong.

One and a half batches come to 180 grams, six times to 720 grams and a dozen to 1,440 grams. Cut to a third it is 40 grams.

What the rounding actually costs

This pair gives 120 for 1 cup with nothing after the decimal point. That is unusual enough to be worth noticing, and it makes scaling trivial.

The amounts recipes actually ask for

Recipes rarely ask for round numbers. 1/4 cup comes to 30 grams; 1/2 cup comes to 60 grams; 3/4 cup comes to 90 grams.

Larger batches follow the same line: 1 1/2 cups comes to 180 grams; 2 1/2 cups comes to 300 grams.

If the recipe already gives both measures, use the one it was tested in and skip the conversion entirely.

All-Purpose Flour Cup-to-Gram Basics

Use 120 grams as the working weight for a level cup of all-purpose flour. Treat the chart as a flour chart, not a general cup chart, because a cup measures volume and grams measure weight.

For the most consistent result, put the bowl on a digital scale, tare it, then add flour until the display matches the chart. This avoids the biggest problem with cups: flour packs down easily.

If you must use cups, loosen the flour first. Spoon it into the cup, let it mound, then sweep the top level with a straight edge. Do not scoop straight from the bag.

Scooping compacts flour against the cup. The cup looks correct, but the dough gets more flour than intended. Cakes turn dry, biscuits get tough, and cookie dough can spread less than expected.

All-purpose flour also changes in the bag. Shipping, storage, and tapping the container make it settle. A recipe written by weight bypasses that settling, so the same formula behaves more predictably.

Do not convert flour by using water weight. A cup of water is much heavier than a cup of flour, so a liquid conversion gives the wrong result. This is why ingredient-specific charts matter.

Use the gram amount before adjusting texture. Mix the recipe as written, then judge the dough or batter. Adding extra flour too early can hide hydration time and make the final bake heavier.

For bread dough, expect feel to vary with flour brand, humidity, and resting time. Start from the chart amount, mix, rest if the recipe allows it, then make small corrections only if needed.

For cakes, muffins, pancakes, and cookies, accuracy matters more because the batter has less room for correction. Weighing the flour helps keep crumb, rise, and spread close to the recipe’s intent.

If a recipe gives both cups and grams, choose grams. If it gives only cups, convert with the all-purpose flour chart, then write the gram amount on the recipe for next time.

Why Flour Cup Weights Vary

Flour cup weights vary because flour is compressible. A cup can hold loose flour, settled flour, or flour packed tight by scooping. Each looks like the same volume in the cup, but the scale will show a different weight.

The biggest cause is how the cup is filled. Dipping the cup into the bag pushes flour together. Spoon-and-level keeps it lighter. Shaking the cup or tapping it on the bench packs in more flour before the top is levelled.

Storage changes the result too. Flour settles in the bag or canister during transport and handling. The flour at the bottom is denser than freshly stirred flour near the top. Stirring before measuring helps, but weighing is more consistent.

Humidity also matters. Flour absorbs moisture from the air. In a damp kitchen it can weigh more for the same cupful. In a dry kitchen it can be lighter and flow more freely. The change is small, but baking notices small changes.

Different cups add another problem. A US customary cup is 236.6 ml, a metric cup is 250 ml, and a UK legal cup is 284 ml. If a recipe does not say which cup it uses, volume alone can mislead you.

Flour type and milling affect packing. Fine flour can settle differently from coarser flour. Bleached and unbleached all-purpose flour may not behave exactly alike in the cup. Brand changes can alter how much flour fits into the same measure.

This is why a cake can turn dry, a dough can turn stiff, or biscuits can lose tenderness even though the cook followed the recipe. The error is not always technique. It may be the cup measure giving a different amount of flour.

For repeatable baking, weigh flour straight into the mixing bowl. Put the bowl on the scale, tare it, and add flour until the chart amount is reached. This removes packing, settling, and cup-size confusion from the recipe.

If you must use cups, fluff the flour, spoon it into the cup, and level it with a straight edge. Do not scoop from the bag. Do not press the flour down. Use the same method every time.

Use the chart as the working standard for all-purpose flour. If a trusted recipe gives its own gram weight, follow that recipe. The goal is not to prove a universal cup; it is to make the same dough or batter again.

Scoop Versus Spoon-and-Level

Scooping and spoon-and-level measuring give different flour weights because they pack the cup differently. A scoop drags the cup through the bag or canister.

That movement compresses flour, especially if the container is full or the flour has settled.

Spoon-and-level is gentler. Stir the flour first, then spoon it into the measuring cup without shaking or pressing. Let the flour mound above the rim, then sweep off the excess with a straight edge.

The difference shows up in dough and batter. A heavy scoop can make biscuits dry, muffins tough, cakes dense, and pancakes thick. The recipe may look wrong, but the measuring method caused the change.

Do not tap the cup on the counter. Do not press flour down with the spoon. Do not dip the cup, lift a heap, and scrape it flat. Those habits turn a volume measure into a packed measure.

If your recipe was tested with spoon-and-level flour, scooping gives too much flour. If it was tested with dipped cups, spoon-and-level may give less. Older family recipes often depend on the cook’s usual hand, not a stated standard.

Use the same method throughout one recipe. Switching methods between the first and second addition can change texture. This matters most in simple doughs where flour carries the structure, such as pastry, shortbread, scones, and bread.

A scale avoids the problem. Place the bowl on the scale, tare it, and add flour until the display matches the recipe or chart. This removes the effect of container shape, wrist pressure, humidity clumps, and storage settling.

If you must use cups, choose spoon-and-level for repeatable home baking. It is slower than scooping, but it is easier to copy next time. Repeatability matters more than speed when flour controls moisture and tenderness.

For packed or clumped flour, loosen it before measuring. Break lumps with a spoon and fluff the top layer. Do not sift unless the recipe tells you to, because sifting changes how the flour fills the cup.

If a dough feels unexpectedly stiff, do not keep adding liquid at once. First check how the flour was measured. A scooped cup can make the recipe seem thirsty even though the ingredient balance was the real issue.

Metric Grams for Better Baking

Metric grams make flour behave more predictably. Put the bowl on the scale, tare it, then add flour until the display matches the chart. This removes the guesswork from packed, aerated, or unevenly filled cups.

Use the gram amount as the target, not the cup as the final judge. If the recipe says cups and the chart gives grams, weigh the flour and move on. Do not keep adding flour to make the cup look full.

This matters most in baking because flour controls structure. Too much flour makes cakes dry, muffins heavy, pastry tough, and biscuits crumbly.

Too little flour can leave batters loose, cookies spreading, and bread dough sticky beyond what the recipe expects.

A scale also helps with repeat batches. If a cake worked well at 120 grams per cup, write that version on the recipe. Next time, weigh the same amount and remove one common reason the result changes.

Set the mixing bowl on the scale before adding ingredients. Press tare after the bowl, then weigh the flour directly into it. If you pour too much, spoon a little back out before mixing.

Fixing the weight early is easier than correcting a stiff batter later.

For small additions, add flour slowly. A quick pour can overshoot the target, especially near the end. Use a spoon for the last bit, then stop as soon as the display reaches the chart amount.

Keep the scale on a flat, stable surface. Do not let the bowl touch a wall, mixer, or your hand while weighing. Any contact can change the reading and make the flour amount wrong.

Use grams for the flour even if the rest of the recipe uses cups. Liquids can be measured in a jug if needed, but flour gains the most from weighing because it compresses easily.

Do not swap cup systems without checking the recipe source. A US customary cup, metric cup, and UK legal cup are different volumes, so the same written cup measure can imply different amounts. Gram weights avoid that problem.

If a dough looks slightly different after weighing correctly, trust the recipe process before adding extra flour. Resting, mixing, or kneading can change texture. Add more only when the recipe tells you what the dough should feel like and why.

Measuring All-Purpose Flour Accurately

Use a digital scale for the cleanest result. Place the bowl on the scale, tare it, then add flour until the display matches the amount your recipe needs. This removes the guesswork built into scooping.

Keep the bag or canister close to the bowl. Move flour with a spoon, scoop, or small cup, but let the scale decide the final amount. If you overshoot, lift out a little flour before mixing.

Fluff flour before measuring by volume. Flour settles during storage and shipping, so a packed container gives more flour than a loose one. Stir the surface lightly, then fill the cup without pressing down.

Level the cup with a straight edge if you are not weighing. Sweep once across the rim. Do not shake the cup to settle the flour, and do not tap it on the counter. Both actions compact the flour.

Dip-and-scoop is risky because the cup acts like a plunger. It pushes into the flour, packs it tighter, and can make dough dry or stiff. This matters most in cakes, biscuits, pastry, and soft cookies.

Use the same method throughout a recipe. Switching between a packed scoop and a light spooned cup changes the dough before you notice. Consistency helps you judge texture, hydration, and whether a recipe is behaving normally.

Watch the flour itself. Damp kitchens, old flour, and clumpy flour can measure unevenly. Break up lumps before measuring. If flour looks compacted or heavy, stir it well before it reaches the cup or bowl.

Do not measure over the mixing bowl unless the flour is already weighed. Extra flour can spill in, and removing it after it touches wet ingredients is impossible. Measure separately, then add it to the recipe.

For repeat bakes, write down the method you used. Note whether you weighed, spooned, or scooped. If the bake turns out well, repeat that method next time instead of chasing a different texture by accident.

If a dough looks wrong, pause before adding more flour. Give the mixture time to hydrate, especially after mixing. Flour absorbs moisture gradually, and rushing can lead to a dry final bake.

Use grams for precision and cups for speed only when the recipe tolerates variation. Pancakes and quick batters are forgiving. Bread, pastry, and cakes benefit from weighing because small measuring differences change structure.

Other ways this gets asked

People look for this in a few different forms; all of them land on the same figures:

How Many Grams Are in a Cup of All-purpose Flour?

1 cup is 120 grams.

How much is 3 cups of flour in grams?

3 cups is 360 grams.

How many grams in 8 cups of flour?

8 cups is 960 grams.

How much is 16 cups of flour in grams?

16 cups is 1,920 grams.

For every kitchen figure in one place, see the full conversion chart.

Sources

• NIST Handbook 44, Appendix C: General Tables of Units of Measurement
• King Arthur Baking, Ingredient Weight Chart

Related conversions

• Cups to Grams Chart of Water
• Cups to Grams Chart of Butter
• Cups to Grams: Every Common Amount of Granulated Sugar
• Convert Cups to Ounces of All-purpose Flour