Convert Kilocalories per Hour to Exawatts
Convert Kilocalories per Hour (kcal/h) to Exawatts (EW) instantly and accurately.
Conversion Formula
EW = kcal/h × 1.163000000e-18
About Kilocalories per Hour
One kilocalorie per hour (kcal/h) equals exactly 1.163 W. It is the natural unit for human metabolic rate: sedentary adult ~60-70 kcal/h; walking 250-350 kcal/h; vigorous cycling 500-700 kcal/h; competitive rowing ~1,200 kcal/h. Treadmills and exercise bikes display kcal/h directly. Industrial drying and evaporation calcs in older metric systems (especially Asia) used kcal/h for heat duty; 1 Mcal/h = 1.163 kW. 1 kcal/h = 1.163 W.
About Exawatts
An exawatt (EW) is 10¹⁸ W. The Sun's total luminosity is 3.828 × 10²⁶ W = 3.828 × 10⁸ EW. Earth intercepts ~0.174 EW of solar power. Gamma-ray burst peak luminosities reach 10⁶-10¹ EW, making them the most powerful transients in the universe. Soft gamma-repeater (magnetar) giant flares briefly reach ~10⁵ EW. Proposed multi-exawatt laser projects (IZEST initiative) aim to compress kilojoules into attosecond pulses for QED vacuum physics. Global human civilisation consumes ~1.8 × 10⁻² EW (18 TW). 1 EW = 10¹⁸ W.
Quick Reference Table
| Kilocalories per Hour (kcal/h) | Exawatts (EW) |
|---|---|
| 1 kcal/h | 1.163 × 10-18 EW |
| 2 kcal/h | 2.326 × 10-18 EW |
| 5 kcal/h | 5.815 × 10-18 EW |
| 10 kcal/h | 1.163 × 10-17 EW |
| 25 kcal/h | 2.908 × 10-17 EW |
| 50 kcal/h | 5.815 × 10-17 EW |
| 100 kcal/h | 1.163 × 10-16 EW |