680 Btu to Joules

680 Btu ≈ 7.1744e+5 J

Calculation: J = 680 Btu × 1055.06 ≈ 7.1744e+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: 680 Btu × 1055.06 = 717440 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 717440 J to Btu, multiply 717440 x 0.000947817, resulting in 680 Btu.

680 Btu is also equal to:

  • 717.44 kilojoule
  • 0.19929 kilowatt hour
  • 171.47 calorie (nutritional)
  • 199.29 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 680 Btu in Joules?

680 Btu equals 717440 Joules. This is calculated by multiplying 680 by the conversion factor 1055.06.

What does 680 Btu look like in Joules?

680 Btu (717440 Joules) is heating a cup of water — a kettle uses about 300 Btu.

How do you calculate 680 Btu to Joules?

Multiply 680 by the conversion factor 1055.06. The calculation is 680 × 1055.06 = 717440 Joules. This factor is defined by international measurement standards.

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680 Btu = 717438 Joules
680 Btu = 717438 Joules — conversion chart

Nearby Conversions

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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.