How Long to Slow Cook Chicken Breast?
Get a size-aware slow cooker estimate below, then verify doneness before serving. How we calculate times.
Calculator
Adjust exact weight, thickness or quantity when you need to.
Estimated cooking time
3 hr 1 min – 3 hr 59 min
- Slow cooker temp
- 194°F / 90°C
Typical estimate · Cooking times vary — follow the food-specific completion and food-safety guidance.
- On Low. Lean breasts dry out easily — check at 3 hours.
- Times assume the food starts refrigerated, not room temperature.
Chicken breast by method
At typical settings. Pressure cooker is fastest at 7–9 min.
| Method | Typical time | Temp |
|---|---|---|
| Oven | 22–26 min | |
| Air fryer | 17–20 min | |
| Pan | 11–13 min | |
| Grill | 12–14 min | |
| Poach | 15–17 min | |
| Slow cooker | 3 hr 1 min – 3 hr 59 min | |
| Pressure cooker | 7–9 min |
How to slow cook chicken breast
Start checking at the early end of the 3 hr 1 min – 3 hr 59 min estimate. Appliance output, size and starting state vary, so use the settings above and follow the food-specific completion and safety guidance.
Slow cooker chicken breast time by size
| Size | Approximate | Time |
|---|---|---|
| Small | ≈170 g, 2 cm thick | 3 hr 1 min – 3 hr 59 min |
| Medium | ≈230 g, 2.5 cm thick | 3 hr 1 min – 3 hr 59 min |
| Large | ≈300 g, 3 cm thick | 3 hr 1 min – 3 hr 59 min |
Fresh vs frozen
Cooking from frozen takes roughly 50% longer and cooks less evenly. These estimates are for a medium.
Fresh / refrigerated
3 hr 1 min – 3 hr 59 min
From frozen
4 hr 31 min – 5 hr 59 min
USDA guidance allows frozen poultry and meat to be cooked without thawing; allow extra time and never thaw at room temperature.
How to know when it's done
Time is an estimate — temperature is the truth. Check the thickest part with an instant-read thermometer: chicken breast is safely done at 165°F / 74°C.
Food-level cooking reference: BBC Good Food — How to cook chicken breast (checked 2026-08-01). CookCue applies deterministic adjustments; food-safety guidance is sourced separately.
Frequently asked questions
Is chicken done at 165°F (74°C)?
Yes. USDA guidance is that chicken is safe to eat once it reaches an internal temperature of 74°C (165°F), measured at the thickest part. Time estimates get you close; the thermometer is the final check.
Can I cook chicken breast from frozen?
Yes, but it takes about 50% longer and cooks less evenly. USDA says frozen chicken is safe to cook (never thaw at room temperature) — check the internal temperature in a few spots.
Should I rest chicken after cooking?
Rest 3–5 minutes loosely covered so the juices redistribute and the temperature equalizes.