Convert Milliwatts to Calories per Hour
Convert Milliwatts (mW) to Calories per Hour (cal/h) instantly and accurately.
Conversion Formula
cal/h = mW × 0.8598452279
About Milliwatts
A milliwatt (mW) is 10⁻³ W - the power scale of consumer wireless communications. Wi-Fi access points transmit at 100 mW (20 dBm); mobile phones peak at up to 1,000 mW. A laser pointer emits 1-5 mW; an LED indicator 10 mW; Bluetooth Classic peaks at 100 mW. Standby power implications: 1 mW × 10⁹ devices × 1 year = 8,760 MWh - enough to power a small town, underscoring why milliwatt standby matters at scale. 1 mW = 10⁻³ W.
About Calories per Hour
One calorie per hour (cal/h) equals exactly 0.001163 W - the rate of transferring one thermochemical calorie (4.1868 J) per hour. A resting adult generates ~70-80 W ≈ 60,000-70,000 cal/h of heat. The unit appears in European and Asian HVAC standards for small-appliance heat loads and in laboratory calorimetry reporting metabolic activity of small organisms. Calorimetric enzyme assays also express catalytic heat in cal/h per unit enzyme. 1 cal/h = 0.001163 W.
Quick Reference Table
| Milliwatts (mW) | Calories per Hour (cal/h) |
|---|---|
| 1 mW | 0.859845 cal/h |
| 2 mW | 1.71969 cal/h |
| 5 mW | 4.29923 cal/h |
| 10 mW | 8.59845 cal/h |
| 25 mW | 21.4961 cal/h |
| 50 mW | 42.9923 cal/h |
| 100 mW | 85.9845 cal/h |