How to Convert Calories to BTU
To convert calories to btu, divide the value by 252.165.
The Formula
BTU = Calories ÷ 252.165
Key Fact
1 british thermal unit = 252.165 calories
Tip: To convert btu back to calories, multiply by 252.165.
Calories to BTU
Convert calories (cal) to btu (BTU) with formulas, examples, and conversion tables.
cal
BTU
1 cal = 0.003966 BTU
Full precision:0.0039657 BTU
Step-by-Step Solution
To convert 1 calories to btu, we divide by 252.165 because one british thermal unit equals exactly 252.165 calories.
1 british thermal unit = 252.165 calories
Since there are 252.165 calories in every british thermal unit, we divide our value by this factor:
1 ÷ 252.165 = 0.003966 btu
So 1 calories = 0.003966 btu.
Quick check: 0.003966 × 252.165 = 1 calories
Example Conversions
Example 1: 1 cal = 0.003966 BTU
1 ÷ 252.165 = 0.003966
1 ÷ 252.165 = 0.003966
Example 2: 5 cal = 0.019828 BTU
5 ÷ 252.165 = 0.019828
5 ÷ 252.165 = 0.019828
Example 3: 10 cal = 0.039657 BTU
10 ÷ 252.165 = 0.039657
10 ÷ 252.165 = 0.039657
Calories to BTU Table
| Calories | BTU |
|---|---|
| 1 cal | 0.003966 BTU |
| 2 cal | 0.007931 BTU |
| 5 cal | 0.019828 BTU |
| 10 cal | 0.039657 BTU |
| 20 cal | 0.079313 BTU |
| 25 cal | 0.099141 BTU |
| 50 cal | 0.19828 BTU |
| 100 cal | 0.39657 BTU |
| 250 cal | 0.99141 BTU |
| 500 cal | 1.9828 BTU |
| 1000 cal | 3.9657 BTU |
1 Calorie in Other Units
| Unit | 1 cal = |
|---|---|
| Calories to Joules | 4.184 J |
| Calories to Kilojoules | 0.004184 kJ |
| Calories to Megajoules | 0.00000418 MJ |
| Calories to Gigajoules | 4.184e-9 GJ |
| Calories to Watt-hours | 0.0011622 Wh |
| Calories to Kilowatt-hours | 0.00000116 kWh |
| Calories to Megawatt-hours | 1.1622e-9 MWh |
| Calories to Kilocalories | 0.001 kcal |
| Calories to BTU | 0.0039657 BTU |
| Calories to Therms | 3.9657e-8 therm |
| Calories to Foot-pounds | 3.086 ft·lb |
| Calories to Electronvolts | 2.6114e+19 eV |
| Calories to Ergs | 41840000 erg |