Lamb Cooking Time Calculator
Calculate perfect cooking times for leg of lamb, rack of lamb, lamb shoulder, and more. All calculators include doneness options from rare to well-done.
Choose Your Lamb Cut
Leg of Lamb
18 min/lb at 325°F
Boneless Leg of Lamb
20 min/lb at 325°F
Lamb Shoulder
45 min/lb at 300°F
Rack of Lamb
14 min/lb at 450°F
Lamb Crown Roast
18 min/lb at 375°F
Lamb Shank
90 min/lb at 300°F
Butterflied Leg of Lamb
12 min/lb at 425°F
Lamb Chops (Loin or Rib)
18 min/lb at 425°F
Half Leg of Lamb
19 min/lb at 325°F
Rolled Leg of Lamb
21 min/lb at 325°F
Slow Roast Lamb Shoulder
60 min/lb at 275°F
Lamb Loin Roast
15 min/lb at 425°F
Lamb Breast
50 min/lb at 300°F
Lamb Internal Temperature Guide
| Doneness | Internal Temp | Description |
|---|---|---|
| Rare | 125°F (52°C) | Cool red center |
| Medium-Rare | 130°F (54°C) | Warm red center |
| Medium | 140°F (60°C) | Warm pink center |
| Well-Done | 160°F (71°C) | No pink, fully cooked |
Frequently Asked Questions
What temperature should lamb be cooked to?
Lamb can be safely served at various temperatures: rare (125°F), medium-rare (130°F), medium (140°F), or well-done (160°F). Unlike poultry, lamb is safe to eat at lower temperatures because bacteria doesn't penetrate solid muscle.
How long to cook leg of lamb per pound?
Leg of lamb takes about 15-25 minutes per pound at 325°F depending on desired doneness. Rare takes about 15 min/lb, medium-rare 18 min/lb, medium 20 min/lb, and well-done 25 min/lb.
Should lamb be cooked covered or uncovered?
Roast lamb uncovered to develop a flavorful crust. Covering traps steam and prevents browning. If it's browning too quickly, tent loosely with foil.
How do I know when lamb is done?
Use a meat thermometer inserted into the thickest part, away from bone. The most accurate way to ensure perfect doneness is by internal temperature, not time alone.
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Last updated: December 2025