Battery Runtime Calculator — Estimate Hours from Wh or Ah
Enter battery capacity, device power draw and conversion efficiency to estimate usable energy and runtime.
Estimated runtime7.08 hours
Usable energy
Runtime = capacity (Wh) × efficiency ÷ power draw (W)
Actual runtime varies with standby draw, temperature, battery age, peak output and discharge limits. Enter the device’s average power draw.
Most looked up
- Frozen dumplingsFrozen foods180°C (355°F) · 10~12 min
- Sweet potatoVegetables200°C (390°F) · 30~40 min
- Frozen french friesFrozen foods200°C (390°F) · 15~18 min
- Pork bellyMeat200°C (390°F) · 12~15 min
- Chicken breastMeat180°C (355°F) · 15~18 min
- Chicken nuggetsFrozen foods180°C (355°F) · 8~10 min
- Chicken wingsMeat200°C (390°F) · 18~22 min
- PotatoVegetables200°C (390°F) · 25~35 min