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    Volume Conversion

    Gallon (US) to Kiloliter Converter

    Quick answer

    To convert Gallon (US)s to Kiloliters, multiply by 0.0037854118 (or divide by 264.1720523581). Therefore, 1 Gallon (US) (gal) equals 0.00378541 Kiloliters (kL).

    Formula: kL = gal × 0.0037854118. Worked example: 10 gal = 0.037854 kL.

    Convert Gallon (US) (gal) to Kiloliter (kL) online with our free unit converter. In volume, 1 gal = 0.003785 kL. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.

    Worked example: converting Gallon (US) to Kiloliter

    1. Step 1 — start with the formula. kL = gal × 0.0037854118
    2. Step 2 — substitute your figure. 10 gal × 0.0037854118
    3. Step 3 — read the result. 10 gal = 0.037854 kL
    4. Step 4 — check it in reverse. gal = kL × 264.1720523581 returns 10 gal, which matches the figure you started with.

    Volume Converter

    40 units available

    Decimals:
    0.003785

    1 gal = 0.003785 kL

    Formula:

    kL = gal × 0.0037854118

    With your value: 1 gal = 0.00378541 kL

    How big is that?

    Everyday references on a logarithmic scale, all expressed in gallon (us) so you can sanity-check the result.

    Milk carton (1/3.8e+3 your value)0.000264 gal
    Kitchen bucket (1/3.8e+2 your value)0.00264 gal
    Car fuel tank (1/76 your value)0.0132 gal
    Bathtub (1/19 your value)0.0528 gal
    Hot tub (1/2.5 your value)0.396 gal
    Your value1.00 gal

    Other Gallon (US) to Kiloliter conversions

    2 gal to kL3 gal to kL4 gal to kL5 gal to kL6 gal to kL7 gal to kL8 gal to kL

    Gallon (US) to Kiloliter Conversion Table

    Gallon (US) (gal)Kiloliter (kL)
    0.50.001893
    10.003785
    20.007571
    50.018927
    100.037854
    150.056781
    200.075708
    250.094635
    500.189271
    1000.378541
    2500.946353
    5001.892706
    10003.785412

    Kiloliter to Gallon (US) Conversion Table

    Kiloliter (kL)Gallon (US) (gal)
    0.5132.086026
    1264.172052
    2528.344105
    51,320.860262
    102,641.720524
    153,962.580785
    205,283.441047
    256,604.301309
    5013,208.602618
    10026,417.205236
    25066,043.01309
    500132,086.026179
    1000264,172.052358

    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.

    Gallon (US) (gal)

    Volume

    Exact conversion

    The US liquid gallon is exactly 231 cubic inches = 3.785 411 784 L.

    Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

    National Institute of Standards and Technology (US) · Reviewed 2026-07-01

    Kiloliter (kL)

    Volume

    Exact conversion

    Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

    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 Gallon (US) to Kiloliter

    To convert from Gallon (US) (gal) to Kiloliter (kL), multiply the value by 0.0037854118.

    Formula: kL = gal × 0.0037854118

    Reverse: gal = kL × 264.1720523581

    Step-by-Step Example

    1. Start with your value in Gallon (US). For example: 5 gal
    2. Multiply by the conversion factor: 5 x 0.0037854118
    3. The result is: 0.018927 kL

    Gallon (US) and Kiloliter Relationship

    This conversion bridges the US Customary / Imperial and Metric (SI) measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Since 1 Gallon (US) represents a fraction of a Kiloliter (1 Kiloliter ≈ 264.1721 Gallon (US)s), the Kiloliter is the larger measurement interval. Understanding the relationship between Gallon (US) and Kiloliter is essential for accurate calculations in physics, engineering, commerce, and daily applications.

    About Gallon (US)

    The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.

    Fun Fact: The US gallon is about 20% smaller than the imperial (UK) gallon.

    Common uses of Gallon (US): fuel (US), beverages, swimming pools.

    About Kiloliter

    The Kiloliter (symbol: kL) is a recognized unit in the Metric (SI) measurement framework, utilized within volume applications for precision and standardized data representation.

    Common uses of Kiloliter: volume calculations, engineering and science, education.

    Frequently Asked Questions

    How many Kiloliters are in 1 Gallon (US)?
    There are exactly 0.0037854118 Kiloliters in 1 Gallon (US). This means the conversion factor from Gallon (US) to Kiloliter is 0.0037854118.
    What is the formula to convert Gallon (US) to Kiloliter?
    The formula to convert Gallon (US) to Kiloliter is: kL = gal × 0.0037854118. For example, to convert 10 Gallon (US)s to Kiloliters, you would multiply 10 by 0.0037854118.
    What is a Gallon (US)?
    The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.
    What is a Kiloliter?
    The Kiloliter (symbol: kL) is a recognized unit in the Metric (SI) measurement framework, utilized within volume applications for precision and standardized data representation.
    What are the common uses of Gallon (US)?
    The Gallon (US) is commonly used in fuel (US), beverages, swimming pools.

    Related Volume Conversions

    Liter → KiloliterMilliliter → KiloliterMicroliter → KiloliterCubic Meter → KiloliterCubic Centimeter → KiloliterCubic Millimeter → KiloliterCubic Kilometer → KiloliterGallon (US) → LiterGallon (US) → Milliliter

    Cite this page

    UnitConvertLab. (2026). Gallon (US) to Kiloliter converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/gallon_us-to-kiloliter