BTU/Minute to Calorie/Second Converter

Power Converter

22 units available

Decimals:

From

To

4.20274

1 BTU/min = 4.20274 cal/s

Formula:

cal/s = BTU/min × 4.202740012

With your value: 1 BTU/min = 4.20274001 cal/s

How big is that?

Everyday references on a logarithmic scale, all expressed in btu/minute so you can sanity-check the result.

LED bulb (1/2.0 your value)0.512 BTU/min

Your value1.00 BTU/min

Laptop (3.7× your value)3.70 BTU/min

Microwave oven (57× your value)56.9 BTU/min

Electric kettle (1.7e+2× your value)171 BTU/min

Family car engine (5.1e+3× your value)5.12e+3 BTU/min

Other BTU/Minute to Calorie/Second conversions

2 BTU/min to cal/s 3 BTU/min to cal/s 4 BTU/min to cal/s 5 BTU/min to cal/s 6 BTU/min to cal/s 7 BTU/min to cal/s 8 BTU/min to cal/s

BTU/Minute to Calorie/Second Conversion Table

BTU/Minute (BTU/min)	Calorie/Second (cal/s)
0.5	2.10137
1	4.20274
2	8.40548
5	21.0137
10	42.0274
15	63.0411
20	84.0548
25	105.0685
50	210.137001
100	420.274001
250	1,050.685003
500	2,101.370006
1000	4,202.740012

Calorie/Second to BTU/Minute Conversion Table

Calorie/Second (cal/s)	BTU/Minute (BTU/min)
0.5	0.11897
1	0.23794
2	0.47588
5	1.1897
10	2.3794
15	3.5691
20	4.7588
25	5.9485
50	11.897
100	23.794001
250	59.485002
500	118.970005
1000	237.94001

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

BTU/Minute (BTU/min)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Calorie/Second (cal/s)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert BTU/Minute to Calorie/Second

To convert from BTU/Minute (BTU/min) to Calorie/Second (cal/s), multiply the value by 4.202740012.

Formula: cal/s = BTU/min × 4.202740012

Reverse: BTU/min = cal/s × 0.2379400099

Step-by-Step Example

Start with your value in BTU/Minute. For example: 5 BTU/min
Multiply by the conversion factor: 5 x 4.202740012
The result is: 21.0137 cal/s

About BTU/Minute

The btu/minute (BTU/min) is a unit of power. One btu/minute equals 17.58426421 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Calorie/Second

The calorie/second (cal/s) is a unit of power. One calorie/second equals 4.184 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

How many Calorie/Second are in 1 BTU/Minute?

There are exactly 4.202740012 Calorie/Second in 1 BTU/Minute. This means the conversion factor from BTU/Minute to Calorie/Second is 4.202740012.

What is the formula to convert BTU/Minute to Calorie/Second?

The formula to convert BTU/Minute to Calorie/Second is: cal/s = BTU/min × 4.202740012. For example, to convert 10 BTU/Minute to Calorie/Second, you would multiply 10 by 4.202740012.

What is a BTU/Minute?