Meatloaf needs roughly 30 minutes per pound at 350°F, so a standard 2 lb loaf runs about an hour. The clock is only a guide — it is done when the centre reads 160°F.
Related conversions
Sizes change the answer more than anything else: see a 2 lb loaf and a 3 lb loaf. Running the oven hotter shortens it again — the same loaf at 375°F. Smoking instead of baking replaces the clock entirely: smoked meatloaf.
Related conversions
Every timing on this site is listed under cooking times.
The number
| Loaf weight | 350°F | 375°F | 400°F |
|---|---|---|---|
| 1 lb | 35–40 min | 30–35 min | 25–30 min |
| 2 lb | 1 hr | 50–55 min | 45–50 min |
| 3 lb | 1 hr 30 min | 1 hr 10 min | 1 hr |
| 4 lb | 2 hr | 1 hr 35 min | 1 hr 20 min |
Times assume a free-form loaf about 3 inches deep, uncovered, in a fully preheated oven. Every row ends the same way: pull it when the centre reads 160°F.
Why “minutes per pound” is a rough rule, not a law
Weight is a convenient stand-in for the thing that actually governs cooking time, which is how far heat has to travel to reach the middle. Two loaves of identical weight can differ by forty minutes if one is a squat block and the other a long, shallow strip.
The per-pound rule works because most people shape meatloaf the same way — about 3 inches deep — not because weight itself drives the physics.
The practical consequence: use 30 minutes per pound to decide when to start checking, not when to stop cooking. For a 2 lb loaf that means opening the oven at 55 minutes, not at 60.
On doneness. The USDA puts the safe internal temperature for ground meat at 160°F. Time is a prediction; the thermometer is the answer. Take the reading in the thickest part of the loaf, away from the pan.
What moves the time
| Change | Effect |
|---|---|
| Baked in a loaf pan rather than free-form | Add 10–15 min — the pan shields the sides |
| Meat straight from the fridge | Add 10 min |
| Loaf flattened to 2 inches deep | Subtract 15–20 min |
| Glaze added in the last 15 minutes | No change; added earlier it scorches |
| Convection setting | Subtract about 10 min, or drop the oven 25°F |
| Very lean mix, 93/7 or leaner | Same time, but pull promptly — it dries fast past 160°F |
How to check it properly
Slide an instant-read probe in from the end of the loaf, horizontally, so the tip sits in the geometric centre. Probing from the top risks pushing through into the pan and reading hot metal instead of meat.
If two readings an inch apart disagree, believe the lower one.
Carryover heat raises the centre by roughly 5°F during the rest, so pulling at 160°F and resting 10 minutes lands you just above it: safe and still juicy.
The rest is not optional — cut straight away and the juice runs onto the board instead of staying in the slice.
Common questions
What oven temperature is best?
350°F is the default for a reason: hot enough to brown, gentle enough that the centre catches up before the edges dry. 375°F saves around fifteen percent of the time and is a fair trade on a fattier mix.
Above 400°F the outside sets too early.
Does the meat mix change the time?
Barely. Fat content changes the texture and how much the loaf shrinks, not how fast heat reaches the middle. What it does change is your margin for error: a 93/7 mix goes from juicy to dry within a few degrees of 160°F.
Can I cook it from frozen?
You can, but plan on roughly fifty percent longer and check the centre carefully — the outside will look finished well before the middle is safe. Thawing overnight in the fridge gives a far more predictable result.
Sources
- USDA Food Safety and Inspection Service — Safe Minimum Internal Temperature Chart (160°F for ground meat)
Times on this page are predictions for a stated loaf shape and oven temperature. Doneness is decided by internal temperature, not by the clock.
