20 Joules to Kilocalories
Convert 20 joules (J) to kilocalories (kcal) with formulas, examples, and conversion tables.
J
kcal
20 J = 0.00478 kcal
Full precision:0.0047801 kcal
Step-by-Step Solution
To convert 20 joules to kilocalories, we divide by 4184 because one kilocalorie equals exactly 4184 joules.
1 kilocalorie = 4184 joules
Since there are 4184 joules in every kilocalorie, we divide our value by this factor:
20 ÷ 4184 = 0.00478 kilocalories
So 20 joules = 0.00478 kilocalories.
Quick check: 0.00478 × 4184 = 20 joules
Joules to Kilocalories Conversion Table
| Joules | Kilocalories |
|---|---|
| 1 J | 0.000239 kcal |
| 2 J | 0.000478 kcal |
| 3 J | 0.000717 kcal |
| 4 J | 0.000956 kcal |
| 5 J | 0.001195 kcal |
| 10 J | 0.00239 kcal |
| 20 J | 0.00478 kcal |
| 50 J | 0.01195 kcal |
| 100 J | 0.023901 kcal |
20 Joules in Other Units
| Unit | 20 J = |
|---|---|
| Joules to Kilojoules | 0.02 kJ |
| Joules to Megajoules | 0.00002 MJ |
| Joules to Gigajoules | 2e-8 GJ |
| Joules to Watt-hours | 0.0055556 Wh |
| Joules to Kilowatt-hours | 0.00000556 kWh |
| Joules to Megawatt-hours | 5.5556e-9 MWh |
| Joules to Calories | 4.7801 cal |
| Joules to Kilocalories | 0.0047801 kcal |
| Joules to BTU | 0.018956 BTU |
| Joules to Therms | 1.8956e-7 therm |
| Joules to Foot-pounds | 14.7512 ft·lb |
| Joules to Electronvolts | 1.2483e+20 eV |
| Joules to Ergs | 200000000 erg |