Thermochemical calories to BTU (international table) converter
Convert thermochemical calories (cal) to BTU (international table) (BTU (IT)).
Energy converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
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.
0.003965666831
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.
CONVERSION
1 cal ≈ 0.003965666831 BTU (IT)
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULABTU (IT) = cal × 0.00396566683139092
FORMULA & EXAMPLES
How to convert Thermochemical calories to BTU (international table)
BTU (IT) = cal × 0.00396566683139092
Multiply the cal reading by 0.00396566683139092.
Worked examples
1 cal ≈ 0.003965666831 BTU (IT)
1 × 0.00396566683139092 ≈ 0.003965666831
1000 cal ≈ 3.965666831 BTU (IT)
1000 × 0.00396566683139092 ≈ 3.965666831
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.
Thermochemical calories to BTU (international table) table
Fixed reference · Thermochemical calorie to BTU (international table)
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Thermochemical calorie (cal)
BTU (international table) (BTU (IT))
0
0
0.1
0.0003965666831
0.5
0.001982833416
1
0.003965666831
2
0.007931333663
5
0.01982833416
10
0.03965666831
25
0.09914167078
50
0.1982833416
100
0.3965666831
1000
3.965666831
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.