BTU (IT) to Kilocalorie Converter

Energy Converter

27 units available

Decimals:

From

To

0.252164

1 BTU (IT) = 0.252164 kcal

Formula:

kcal = BTU (IT) × 0.2521644007

With your value: 1 BTU (IT) = 0.2521644 kcal

How big is that?

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

Heartbeat (1/1.1e+3 your value)0.000948 BTU (IT)

Your value1.00 BTU (IT)

AA battery charge (9.5× your value)9.48 BTU (IT)

Slice of bread (2.7e+2× your value)265 BTU (IT)

Daily food intake (8.0e+3× your value)7.96e+3 BTU (IT)

Litre of petrol (3.2e+4× your value)3.24e+4 BTU (IT)

Other BTU (IT) to Kilocalorie conversions

2 BTU (IT) to kcal 3 BTU (IT) to kcal 4 BTU (IT) to kcal 5 BTU (IT) to kcal 6 BTU (IT) to kcal 7 BTU (IT) to kcal 8 BTU (IT) to kcal

BTU (IT) to Kilocalorie Conversion Table

BTU (IT) (BTU (IT))	Kilocalorie (kcal)
0.5	0.126082
1	0.252164
2	0.504329
5	1.260822
10	2.521644
15	3.782466
20	5.043288
25	6.30411
50	12.60822
100	25.21644
250	63.0411
500	126.0822
1000	252.164401

Kilocalorie to BTU (IT) Conversion Table

Kilocalorie (kcal)	BTU (IT) (BTU (IT))
0.5	1.982833
1	3.965667
2	7.931334
5	19.828334
10	39.656668
15	59.485002
20	79.313337
25	99.141671
50	198.283342
100	396.566683
250	991.416708
500	1,982.833416
1000	3,965.666831

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 (IT) (BTU (IT))

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

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

Kilocalorie (kcal)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

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 (IT) to Kilocalorie

To convert from BTU (IT) (BTU (IT)) to Kilocalorie (kcal), multiply the value by 0.2521644007.

Formula: kcal = BTU (IT) × 0.2521644007

Reverse: BTU (IT) = kcal × 3.9656668314

Step-by-Step Example

Start with your value in BTU (IT). For example: 5 BTU (IT)
Multiply by the conversion factor: 5 x 0.2521644007
The result is: 1.260822 kcal

About BTU (IT)

The btu (it) (BTU (IT)) is a unit of energy and work. One btu (it) equals 1055.055853 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

About Kilocalorie

The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.

Common uses: nutrition, diet, food labeling.

Frequently Asked Questions

How many Kilocalorie are in 1 BTU (IT)?

There are exactly 0.2521644007 Kilocalorie in 1 BTU (IT). This means the conversion factor from BTU (IT) to Kilocalorie is 0.2521644007.

What is the formula to convert BTU (IT) to Kilocalorie?

The formula to convert BTU (IT) to Kilocalorie is: kcal = BTU (IT) × 0.2521644007. For example, to convert 10 BTU (IT) to Kilocalorie, you would multiply 10 by 0.2521644007.

What is a BTU (IT)?