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British Thermal Units to Gigajoules Converter

Convert british thermal units to gigajoules and back instantly with formula and common values.

BTU

Gigajoules

0

GJ

4.2 BTU = 0 GJ

GJ = BTU × 1.0551e-6

British Thermal Units to Gigajoules: 1 BTU equals 1.05506e-6 GJ. To convert british thermal units to gigajoules, multiply by 1.05506e-6 (GJ = BTU × 1.0551e-6). For example, 10 BTU = 1.05506e-5 GJ.

How to Convert British Thermal Units to Gigajoules

To convert from british thermal units to gigajoules, multiply the value by 1.05506e-6. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • British Thermal Units to Gigajoules: GJ = BTU × 1.0551e-6
  • Gigajoules to British Thermal Units: BTU = GJ ÷ 1.0551e-6

British Thermal Units to Gigajoules Conversion Chart

British Thermal Units (BTU)Gigajoules (GJ)
0.11.05506e-7
0.252.63765e-7
0.55.27530e-7
11.05506e-6
22.11012e-6
33.16518e-6
55.27530e-6
101.05506e-5
202.11012e-5
252.63765e-5
505.27530e-5
1000.000106
2500.000264
10000.001055

Understanding the Units

What is a British Thermal Unit?

A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit.

Common contexts: HVAC, natural gas (US), heating systems.

What is a Gigajoule?

A gigajoule equals one billion joules (10⁹ J).

Common contexts: natural gas billing, large-scale energy reporting.

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FAQ

How do I convert british thermal units to gigajoules?

Multiply by 1.0551e-6. For example, 4.2 BTU × 1.0551e-6 = 4.000e-6 GJ.

What is the formula for british thermal units to gigajoules?

The formula is: GJ = BTU × 1.0551e-6.

How many gigajoules are in one british thermal unit?

One british thermal unit equals 1.000e-6 gigajoules.

How many gigajoules are in 1 british thermal unit?

1 BTU equals 1.05506e-6 GJ.

How do you convert british thermal units to gigajoules?

Multiply the british thermal unit value by 1.05506e-6. Formula: GJ = BTU × 1.0551e-6.

How many gigajoules are in 5 british thermal units?

5 BTU = 5.27530e-6 GJ.

How do you convert gigajoules back to british thermal units?

Use the inverse formula: BTU = GJ ÷ 1.0551e-6. For example, 1 GJ = 947813.394499 BTU.

What is the difference between British Thermal Unit and Gigajoul?

A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit. A gigajoule equals one billion joules (10⁹ J).