231 Btu to Joules

231 Btu ≈ 2.4372e+5 J

Calculation: J = 231 Btu × 1055.06 ≈ 2.4372e+5 J

Btu to Joule Converter

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How to Convert Btu to Joule

1 Btu = 1055.06 Joules

Joule = Btu × 1055.06

Example: 231 Btu × 1055.06 = 243720 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 243720 J to Btu, multiply 243720 x 0.000947817, resulting in 231 Btu.

231 Btu is also equal to:

  • 243.72 kilojoule
  • 0.067699 kilowatt hour
  • 58.25 calorie (nutritional)
  • 67.699 watt hour
About these units

Btu: British thermal unit (IT) — legacy heat unit based on heating water.

Joule: SI unit of energy: 1 J = 1 N·m = 1 kg·m²·s⁻².

Frequently Asked Questions

How much is 231 Btu in Joules?

231 Btu equals 243720 Joules. This is calculated by multiplying 231 by the conversion factor 1055.06.

What does 231 Btu look like in Joules?

231 Btu (243720 Joules) is heating a cup of water — a kettle uses about 300 Btu.

How do you calculate 231 Btu to Joules?

Multiply 231 by the conversion factor 1055.06. The calculation is 231 × 1055.06 = 243720 Joules. This factor is defined by international measurement standards.

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231 Btu = 243718 Joules
231 Btu = 243718 Joules — conversion chart

Nearby Conversions

181 Btu191000 Joules 186 Btu196200 Joules 191 Btu201500 Joules 196 Btu206800 Joules 201 Btu212100 Joules 206 Btu217300 Joules 211 Btu222600 Joules 216 Btu227900 Joules 221 Btu233200 Joules 226 Btu238400 Joules 236 Btu249000 Joules 241 Btu254300 Joules 246 Btu259500 Joules 251 Btu264800 Joules 256 Btu270100 Joules 261 Btu275400 Joules 266 Btu280600 Joules 271 Btu285900 Joules 276 Btu291200 Joules 281 Btu296500 Joules

For general conversions between Btu and Joules, see the Btu to Joules converter.

Also convert Btu to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.