Convert Kilocalories per Hour to Petawatts
Convert Kilocalories per Hour (kcal/h) to Petawatts (PW) instantly and accurately.
Conversion Formula
PW = kcal/h × 1.163000000e-15
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 Petawatts
A petawatt (PW) is 10¹⁵ W. Total solar power intercepted by Earth is ~174 PW. The world's most powerful laser pulses operate at petawatt peak power via chirped pulse amplification (CPA, 2018 Nobel Prize in Physics): China's SULF demonstrated 10 PW in 2019; ELI-NP targets 10 PW. These PW pulses last femtoseconds and create plasma temperatures of billions of kelvin in laboratory targets. Gamma-ray bursts radiate 10²⁴-10²⁷ W at peak - thousands to billions of times the petawatt scale. 1 PW = 10¹⁵ W.
Quick Reference Table
| Kilocalories per Hour (kcal/h) | Petawatts (PW) |
|---|---|
| 1 kcal/h | 1.163 × 10-15 PW |
| 2 kcal/h | 2.326 × 10-15 PW |
| 5 kcal/h | 5.815 × 10-15 PW |
| 10 kcal/h | 1.163 × 10-14 PW |
| 25 kcal/h | 2.907 × 10-14 PW |
| 50 kcal/h | 5.815 × 10-14 PW |
| 100 kcal/h | 1.163 × 10-13 PW |