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    UnitConvertLab — Unit conversion laboratory

    120 Gigawatt to BTU/Second

    120 Gigawatt (GW) equals

    113,738,054.437598 BTU/s

    120 × 947,817.1203133172 = 113,738,054.437598 BTU/Second

    Convert Gigawatt (GW) to BTU/Second (BTU/s) instantly. 1 GW = 947,817.120313 BTU/s.

    Worked example: converting Gigawatt to BTU/Second

    1. Step 1 — start with the formula. BTU/s = GW × 947,817.1203133172
    2. Step 2 — substitute your figure. 120 GW × 947,817.1203133172
    3. Step 3 — read the result. 120 GW = 113,738,054.437598 BTU/s
    4. Step 4 — check it in reverse. GW = BTU/s × 0.0000010551 returns Invalid GW, which matches the figure you started with.

    Power Converter

    22 units available

    Decimals:
    113,738,054.437598

    120 GW = 113,738,054.437598 BTU/s

    Formula:

    BTU/s = GW × 947,817.1203133172

    With your value: 120 GW = 113,738,054.43759806 BTU/s

    How big is that?

    Everyday references on a logarithmic scale, all expressed in gigawatt so you can sanity-check the result.

    LED bulb (1/1.3e+10 your value)9.00e-9 GW
    Laptop (1/1.8e+9 your value)6.50e-8 GW
    Microwave oven (1/1.2e+8 your value)0.00000100 GW
    Electric kettle (1/4.0e+7 your value)0.00000300 GW
    Family car engine (1/1.3e+6 your value)0.0000900 GW
    Your value120 GW

    Other Gigawatt to BTU/Second conversions

    85 GW to BTU/s90 GW to BTU/s96 GW to BTU/s100 GW to BTU/s150 GW to BTU/s200 GW to BTU/s500 GW to BTU/sFull Gigawatt to BTU/Second converter

    Gigawatt to BTU/Second Conversion Table

    Gigawatt (GW)BTU/Second (BTU/s)
    0.5473,908.560157
    1947,817.120313
    21,895,634.240627
    54,739,085.601567
    109,478,171.203133
    1514,217,256.8047
    2018,956,342.406266
    2523,695,428.007833
    5047,390,856.015666
    10094,781,712.031332
    250236,954,280.078329
    500473,908,560.156659
    1000947,817,120.313317

    BTU/Second to Gigawatt Conversion Table

    BTU/Second (BTU/s)Gigawatt (GW)
    0.55.275279e-7
    11.055056e-6
    22.110112e-6
    55.275279e-6
    101.055056e-5
    151.582584e-5
    202.110112e-5
    252.637640e-5
    505.275279e-5
    1000.000106
    2500.000264
    5000.000528
    10000.001055

    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.

    Gigawatt (GW)

    Power

    Exact conversion

    Derived from the watt (1 W = 1 J/s).

    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

    BTU/Second (BTU/s)

    Power

    Exact conversion

    Derived from the watt (1 W = 1 J/s).

    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 Gigawatt to BTU/Second

    To convert from Gigawatt (GW) to BTU/Second (BTU/s), multiply the value by 947,817.1203133172.

    Formula: BTU/s = GW × 947,817.1203133172

    Reverse: GW = BTU/s × 0.0000010551

    Step-by-Step Example

    1. Start with your value in Gigawatt. For example: 5 GW
    2. Multiply by the conversion factor: 5 x 947,817.1203133172
    3. The result is: 4,739,085.601567 BTU/s

    About Gigawatt

    The gigawatt (GW) is a unit of power. One gigawatt equals 1.000000 × 10^+9 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

    About BTU/Second

    The btu/second (BTU/s) is a unit of power. One btu/second equals 1055.055853 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

    Frequently Asked Questions

    What is 120 Gigawatt in BTU/Second?

    120 Gigawatt equals 113,738,054.437598 BTU/Second.

    How many BTU/Second are in 1 Gigawatt?

    There are exactly 947,817.1203133172 BTU/Second in 1 Gigawatt. This means the conversion factor from Gigawatt to BTU/Second is 947,817.1203133172.

    What is the formula to convert Gigawatt to BTU/Second?

    The formula to convert Gigawatt to BTU/Second is: BTU/s = GW × 947,817.1203133172. For example, to convert 10 Gigawatt to BTU/Second, you would multiply 10 by 947,817.1203133172.

    What is a Gigawatt?

    The gigawatt (GW) is a unit of power. One gigawatt equals 1.000000 × 10^+9 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What is a BTU/Second?

    The btu/second (BTU/s) is a unit of power. One btu/second equals 1055.055853 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What are the common uses of Gigawatt?

    The Gigawatt is commonly used in power calculations, engineering and science, education.

    Related Power Conversions

    Watt → BTU/SecondKilowatt → BTU/SecondMegawatt → BTU/SecondGigawatt → WattGigawatt → KilowattGigawatt → MegawattGigawatt → MilliwattGigawatt → MicrowattGigawatt → Horsepower (Mech)

    Cite this page

    UnitConvertLab. (2026). 120 Gigawatt to BTU/Second. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/120-gigawatt-to-btu_per_second