1000 Btu to Joules

1000 Btu ≈ 1.0551e+6 J

Calculation: J = 1000 Btu × 1055.06 ≈ 1.0551e+6 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: 1000 Btu × 1055.06 = 1055100 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 1055100 J to Btu, multiply 1055100 x 0.000947817, resulting in 1000 Btu.

1000 Btu is also equal to:

  • 1055.1 kilojoule
  • 0.29307 kilowatt hour
  • 252.16 calorie (nutritional)
  • 293.07 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 1000 Btu in Joules?

1000 Btu equals 1055100 Joules. This is calculated by multiplying 1000 by the conversion factor 1055.06.

What does 1000 Btu look like in Joules?

1000 Btu (1055100 Joules) is a small space heater output per hour.

How do you calculate 1000 Btu to Joules?

Multiply 1000 by the conversion factor 1055.06. The calculation is 1000 × 1055.06 = 1055100 Joules. This factor is defined by international measurement standards.

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1000 Btu = 1055060 Joules
1000 Btu = 1055060 Joules — conversion chart

Nearby Conversions

950 Btu1002000 Joules 955 Btu1008000 Joules 960 Btu1013000 Joules 965 Btu1018000 Joules 970 Btu1023000 Joules 975 Btu1029000 Joules 980 Btu1034000 Joules 985 Btu1039000 Joules 990 Btu1045000 Joules 995 Btu1050000 Joules 1005 Btu1060000 Joules 1010 Btu1066000 Joules 1015 Btu1071000 Joules 1020 Btu1076000 Joules 1025 Btu1081000 Joules 1030 Btu1087000 Joules 1035 Btu1092000 Joules 1040 Btu1097000 Joules 1045 Btu1103000 Joules 1050 Btu1108000 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.