Convert Nanowatts to Calories per Hour
Convert Nanowatts (nW) to Calories per Hour (cal/h) instantly and accurately.
Conversion Formula
cal/h = nW × 8.598452279e-7
About Nanowatts
A nanowatt (nW) is 10⁻⁹ W - the power scale of ultra-low-power embedded systems. Cardiac pacemakers deliver sensing pulses at nanowatt levels to preserve 7-10 year battery life. RFID tags harvest ~10-200 nW from reader fields. Solar cells in wristwatches and calculators operate on ambient indoor light yielding tens of nanowatts. A standard AA cell (13,500 J) discharged at 1 nW would last over 400 years. Neuromorphic chips target 10-100 nW per neuron-equivalent circuit. 1 nW = 10⁻⁹ 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
| Nanowatts (nW) | Calories per Hour (cal/h) |
|---|---|
| 1 nW | 8.598 × 10-7 cal/h |
| 2 nW | 1.72 × 10-6 cal/h |
| 5 nW | 4.299 × 10-6 cal/h |
| 10 nW | 8.598 × 10-6 cal/h |
| 25 nW | 2.15 × 10-5 cal/h |
| 50 nW | 4.299 × 10-5 cal/h |
| 100 nW | 8.598 × 10-5 cal/h |