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    UnitConvertLab — Unit conversion laboratory

    3 Horsepower (Metric) to Horsepower (Mech)

    3 Horsepower (Metric) (PS) equals

    2.95896 hp

    3 × 0.9863200706 = 2.95896 Horsepower (Mech)

    Convert Horsepower (Metric) (PS) to Horsepower (Mech) (hp) instantly. 1 PS = 0.98632 hp.

    Worked example: converting Horsepower (Metric) to Horsepower (Mech)

    1. Step 1 — start with the formula. hp = PS × 0.9863200706
    2. Step 2 — substitute your figure. 3 PS × 0.9863200706
    3. Step 3 — read the result. 3 PS = 2.95896 hp
    4. Step 4 — check it in reverse. PS = hp × 1.0138696654 returns 3 PS, which matches the figure you started with.

    Power Converter

    22 units available

    Decimals:
    2.95896

    3 PS = 2.95896 hp

    Formula:

    hp = PS × 0.9863200706

    With your value: 3 PS = 2.95896021 hp

    How big is that?

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

    LED bulb (1/2.5e+2 your value)0.0122 PS
    Laptop (1/34 your value)0.0884 PS
    Microwave oven (1/2.2 your value)1.36 PS
    Your value3.00 PS
    Electric kettle (1.4× your value)4.08 PS
    Family car engine (41× your value)122 PS

    Other Horsepower (Metric) to Horsepower (Mech) conversions

    1 PS to hp2 PS to hp4 PS to hp5 PS to hp6 PS to hp7 PS to hp8 PS to hpFull Horsepower (Metric) to Horsepower (Mech) converter

    Horsepower (Metric) to Horsepower (Mech) Conversion Table

    Horsepower (Metric) (PS)Horsepower (Mech) (hp)
    0.50.49316
    10.98632
    21.97264
    54.9316
    109.863201
    1514.794801
    2019.726401
    2524.658002
    5049.316004
    10098.632007
    250246.580018
    500493.160035
    1000986.320071

    Horsepower (Mech) to Horsepower (Metric) Conversion Table

    Horsepower (Mech) (hp)Horsepower (Metric) (PS)
    0.50.506935
    11.01387
    22.027739
    55.069348
    1010.138697
    1515.208045
    2020.277393
    2525.346742
    5050.693483
    100101.386967
    250253.467416
    500506.934833
    10001,013.869665

    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.

    Horsepower (Metric) (PS)

    Power

    Exact conversion

    Metric horsepower (PS) is exactly 75 kgf·m/s = 735.498 75 W.

    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

    Horsepower (Mech) (hp)

    Power

    Exact conversion

    Mechanical horsepower is exactly 550 ft·lbf/s = 745.699 871 582 270 22 W.

    Metric horsepower (PS) is 735.498 75 W — about 1.4 % lower.

    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 Horsepower (Metric) to Horsepower (Mech)

    To convert from Horsepower (Metric) (PS) to Horsepower (Mech) (hp), multiply the value by 0.9863200706.

    Formula: hp = PS × 0.9863200706

    Reverse: PS = hp × 1.0138696654

    Step-by-Step Example

    1. Start with your value in Horsepower (Metric). For example: 5 PS
    2. Multiply by the conversion factor: 5 x 0.9863200706
    3. The result is: 4.9316 hp

    About Horsepower (Metric)

    The horsepower (metric) (PS) is a unit of power. One horsepower (metric) equals 735.49875 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 Horsepower (Mech)

    The horsepower (mech) (hp) is a unit of power. One horsepower (mech) equals 745.6998716 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 3 Horsepower (Metric) in Horsepower (Mech)?

    3 Horsepower (Metric) equals 2.95896 Horsepower (Mech).

    How many Horsepower (Mech) are in 1 Horsepower (Metric)?

    There are exactly 0.9863200706 Horsepower (Mech) in 1 Horsepower (Metric). This means the conversion factor from Horsepower (Metric) to Horsepower (Mech) is 0.9863200706.

    What is the formula to convert Horsepower (Metric) to Horsepower (Mech)?

    The formula to convert Horsepower (Metric) to Horsepower (Mech) is: hp = PS × 0.9863200706. For example, to convert 10 Horsepower (Metric) to Horsepower (Mech), you would multiply 10 by 0.9863200706.

    What is a Horsepower (Metric)?

    The horsepower (metric) (PS) is a unit of power. One horsepower (metric) equals 735.49875 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 Horsepower (Mech)?

    The horsepower (mech) (hp) is a unit of power. One horsepower (mech) equals 745.6998716 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 Horsepower (Metric)?

    The Horsepower (Metric) is commonly used in power calculations, engineering and science, education.

    Related Power Conversions

    Watt → Horsepower (Mech)Kilowatt → Horsepower (Mech)Megawatt → Horsepower (Mech)Gigawatt → Horsepower (Mech)Milliwatt → Horsepower (Mech)Microwatt → Horsepower (Mech)Horsepower (Metric) → WattHorsepower (Metric) → KilowattHorsepower (Metric) → Megawatt

    Cite this page

    UnitConvertLab. (2026). 3 Horsepower (Metric) to Horsepower (Mech). UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/3-horsepower_metric-to-horsepower_mech