cooking method
Slow Cooker Time Calculator
Calculate slow cooker cooking times for any meat cut on low or high heat.
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Try an Example
Pick a scenario to see how the calculator works, then adjust the values
Thanksgiving Turkey
14 lb turkey at 325 degrees F, unstuffed, standard oven.
Key values: 14 lb turkey · 325 degrees F · Standard oven
Roast Chicken
5 lb whole chicken at 375 degrees F in a convection oven.
Key values: 5 lb chicken · 375 degrees F · Convection oven
Sunday Beef Roast
8 lb bone-in beef roast at 350 degrees F, started at room temperature.
Key values: 8 lb beef roast · 350 degrees F · Room temp start
Oven to Slow Cooker Conversion
The general rule for converting conventional oven recipes to slow cooker:
| Oven time | Slow cooker (High) | Slow cooker (Low) |
|---|---|---|
| 15–30 min | 1.5–2.5 hours | 4–6 hours |
| 30–60 min | 2–3 hours | 6–8 hours |
| 1–2 hours | 3–4 hours | 8–10 hours |
| 2–4 hours | 4–6 hours | 10–12 hours |
Approximate multiplier:
Low vs. High Settings
Low (~190°F / 88°C)
Best for tough cuts (chuck, brisket, shanks). The long, gentle heat breaks down collagen into gelatin over 8–10 hours, yielding fork-tender meat.
High (~300°F / 149°C)
Reaches the same final temperature but gets there faster. Use when you have less time. Most recipes can be cooked on High in about half the Low setting time.
Key insight: Both settings ultimately reach the same simmering temperature (~209°F / 98°C). “Low” and “High” refer to how quickly the cooker reaches that temperature, not the final cooking temperature.
Adjusting Liquid
Slow cookers trap moisture — very little evaporates compared to oven roasting. Reduce liquid by 30–50% when converting from an oven recipe:
Fill the slow cooker half to two-thirds full for best results. Too little food may overcook; too full prevents proper heat circulation.
Best and Worst Foods for Slow Cooking
| Great for slow cooker | Avoid in slow cooker |
|---|---|
| Tough cuts (chuck, brisket, shanks) | Tender cuts (tenderloin, filet) |
| Stews, soups, chilis | Pasta (add last 30 min only) |
| Beans (from dried) | Dairy (add at end to prevent curdling) |
| Root vegetables | Delicate vegetables (add last hour) |
| Pulled pork/chicken | Seafood (overcooks easily) |
Frequently Asked Questions
How do I convert oven time to slow cooker time?
Multiply the oven cooking time by approximately 3 for slow cooker high, or by 6 for slow cooker low. For example, a recipe that takes 1 hour in the oven takes about 3 hours on high or 6 hours on low in a slow cooker.
What is the difference between slow cooker low and high settings?
Both settings reach the same final simmering temperature of about 209°F (98°C). The difference is how quickly they get there. Low takes longer to reach temperature, resulting in more tender meat due to the extended gentle cooking. High reaches temperature faster and is suitable when you have less time.
How much liquid should I use in a slow cooker?
Reduce liquid by 30 to 50% compared to an oven recipe because slow cookers trap moisture with very little evaporation. Fill the slow cooker half to two-thirds full for best results. Too little food may overcook; too full prevents proper heat circulation.
What meats are best for slow cooking?
Tough, collagen-rich cuts like chuck roast, brisket, pork shoulder, and lamb shanks are ideal. The long, gentle cooking breaks down collagen into gelatin, making the meat fork-tender. Lean, tender cuts like tenderloin or filet dry out in a slow cooker.
Can I put frozen meat in a slow cooker?
The USDA advises against putting frozen meat directly in a slow cooker. Frozen meat stays in the bacterial danger zone (40--140°F) too long as the slow cooker heats up. Always thaw meat completely in the refrigerator before slow cooking.
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