BTU to Calories

Convert BTU to Calories. 1 BTU equals 252.1644 cal. Type a value on either side; the formula and tables below show how it works.

BTU
cal
1 BTU equals
252.1644cal

Formula: cal = BTU × 252.1644. Example: 5 BTU = 1,260.82 cal.

1 BTU in every unit

Joules1,055.06 J
Kilojoules1.0551 kJ
Calories252.1644 cal
Kilocalories0.252164 kcal
Watt-hours0.293071 Wh
Kilowatt-hours0.000293071 kWh
Therms0.00001 thm
Electronvolts6,585,140,678,190,667,137,024 eV

BTU to Calories table

BTUCalories
0.1 BTU25.2164 cal
0.25 BTU63.0411 cal
0.5 BTU126.0822 cal
1 BTU252.1644 cal
2 BTU504.3288 cal
3 BTU756.4932 cal
4 BTU1,008.66 cal
5 BTU1,260.82 cal
10 BTU2,521.64 cal
15 BTU3,782.47 cal
20 BTU5,043.29 cal
25 BTU6,304.11 cal
50 BTU12,608.22 cal
75 BTU18,912.33 cal
100 BTU25,216.44 cal
250 BTU63,041.1 cal
500 BTU126,082.2 cal
1,000 BTU252,164.4 cal
CaloriesBTU
0.1 cal0.000396567 BTU
0.25 cal0.000991417 BTU
0.5 cal0.001983 BTU
1 cal0.003966 BTU
2 cal0.007931 BTU
3 cal0.011897 BTU
4 cal0.015863 BTU
5 cal0.019828 BTU
10 cal0.039657 BTU
15 cal0.059485 BTU
20 cal0.079313 BTU
25 cal0.099142 BTU
50 cal0.198283 BTU
75 cal0.297425 BTU
100 cal0.396567 BTU
250 cal0.991417 BTU
500 cal1.9828 BTU
1,000 cal3.9657 BTU

How to convert btu to calories

cal = BTU × 252.1644

Multiply the value in btu by 252.1644. To go the other way, divide by the same number, or multiply by 0.003966. For example, 5 BTU × 252.1644 = 1,260.82 cal.

About the units

BTU (BTU). The international table British thermal unit, about 1,055 joules. Heating and air conditioning ratings in the US.

Calories (cal). The small (thermochemical) calorie, exactly 4.184 joules.

Other energy conversions

Joules to Calories · Kilojoules to Calories · Calories to Joules · Calories to Kilojoules · Calories to Kilocalories · Calories to Watt-hours · Calories to Kilowatt-hours · Calories to BTU · Calories to Therms · Calories to Electronvolts · Kilocalories to Calories · Watt-hours to Calories · Kilowatt-hours to Calories · BTU to Joules · BTU to Kilojoules · BTU to Calories · BTU to Kilocalories · BTU to Watt-hours · BTU to Kilowatt-hours · BTU to Therms · BTU to Electronvolts · Therms to Calories · Electronvolts to Calories

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