Convert Exawatts to Calories per Hour
Convert Exawatts (EW) to Calories per Hour (cal/h) instantly and accurately.
Conversion Formula
cal/h = EW × 8.598452279e+20
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.
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
| Exawatts (EW) | Calories per Hour (cal/h) |
|---|---|
| 1 EW | 8.598 × 1020 cal/h |
| 2 EW | 1.72 × 1021 cal/h |
| 5 EW | 4.299 × 1021 cal/h |
| 10 EW | 8.598 × 1021 cal/h |
| 25 EW | 2.15 × 1022 cal/h |
| 50 EW | 4.299 × 1022 cal/h |
| 100 EW | 8.598 × 1022 cal/h |