BTU (international table) to thermochemical calories converter
Convert BTU (international table) (BTU (IT)) to thermochemical calories (cal).
Energy converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
BTU (IT)
esc
JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
252.1644007
cal
esc
JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
CONVERSION
1 BTU (IT) ≈ 252.1644007 cal
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAcal = BTU (IT) × 252.164400721797
FORMULA & EXAMPLES
How to convert BTU (international table) to thermochemical calories
cal = BTU (IT) × 252.164400721797
Multiply the BTU (IT) reading by 252.164400721797.
Worked examples
1 BTU (IT) ≈ 252.1644007 cal
1 × 252.164400721797 ≈ 252.1644007
1000 BTU (IT) ≈ 252164.4007 cal
1000 × 252.164400721797 ≈ 252164.4007
Frequently asked questions
Is a food Calorie the same as a thermochemical calorie?
A food Calorie is a kilocalorie: 1 kcal = 1,000 cal. This tool uses the thermochemical calorie of exactly 4.184 J.
BTU (international table) to thermochemical calories table
Fixed reference · BTU (international table) to Thermochemical calorie
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
BTU (international table) (BTU (IT))
Thermochemical calorie (cal)
0
0
0.1
25.21644007
0.5
126.0822004
1
252.1644007
2
504.3288014
5
1260.822004
10
2521.644007
25
6304.110018
50
12608.22004
100
25216.44007
1000
252164.4007
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.