Calculate ideal steady vertical lifting mass from delivered mechanical power and speed, or solve power or lifting speed. This uses standard gravity and is not a safe lifting-capacity rating.
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hp To kg Formula
Variables:
- M is the ideal steadily lifted mass in kilograms; its weight is F = M × 9.80665 newtons under standard gravity
- HP is mechanical power delivered to the load in horsepower; it is not electrical input power
- V is the velocity (m/s)
To calculate hp To kg (kgf-equivalent), multiply the horsepower by 76.0402249, then divide by the velocity in meters per second.
| Horsepower (hp) | Kilowatts (kW) | Kilograms (kg) at 1 m/s | Pounds (lb) |
|---|---|---|---|
| 0.5 | 0.373 | 38.020 | 83.820 |
| 1 | 0.746 | 76.040 | 167.640 |
| 1.5 | 1.119 | 114.060 | 251.460 |
| 2 | 1.491 | 152.080 | 335.280 |
| 3 | 2.237 | 228.121 | 502.920 |
| 5 | 3.728 | 380.201 | 838.200 |
| 7.5 | 5.593 | 570.302 | 1257.300 |
| 10 | 7.457 | 760.402 | 1676.400 |
| 12 | 8.948 | 912.483 | 2011.680 |
| 15 | 11.185 | 1140.603 | 2514.600 |
| 20 | 14.914 | 1520.804 | 3352.800 |
| 25 | 18.642 | 1901.006 | 4191.000 |
| 30 | 22.371 | 2281.207 | 5029.200 |
| 40 | 29.828 | 3041.609 | 6705.600 |
| 50 | 37.285 | 3802.011 | 8382.000 |
| 60 | 44.742 | 4562.413 | 10058.400 |
| 75 | 55.927 | 5703.017 | 12573.000 |
| 100 | 74.570 | 7604.022 | 16764.000 |
| 150 | 111.855 | 11406.034 | 25146.000 |
| 200 | 149.140 | 15208.045 | 33528.000 |
| * Rounded to 3 decimals. Assumes velocity v = 1.00 m/s. Formula: M(kg) = (HP × 76.0402249) ÷ v(m/s). The result in kg is mass, derived from P = F·v and F = m·g under standard gravity; the corresponding force is expressed separately in newtons. Unit facts: 1 hp ≈ 0.7457 kW; 1 kg ≈ 2.20462 lb. | |||
How to Calculate hp To kg?
The following steps outline how to calculate the hp To kg (kgf-equivalent).
- First, determine the horsepower (hp).
- Next, determine the velocity (m/s).
- Next, gather the formula from above = M = (HP * 76.0402249) / V.
- Finally, calculate the hp To kg (kgf-equivalent).
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
horsepower (hp) = 60
velocity (m/s) = 2.5
Frequently Asked Questions
What is horsepower (hp)?
Horsepower (hp) is a unit of measurement for power, or the rate at which work is done. Mechanical horsepower is traditionally defined as 550 foot-pounds-force per second (550 ft·lbf/s), which is the same as 33,000 ft·lbf per minute.
How does velocity affect the calculation from horsepower to kilograms?
In this calculator, velocity affects the result through P = F·v (power equals force times velocity). For a fixed horsepower, increasing velocity decreases the force available, so the kg-equivalent value (kgf-equivalent) decreases as velocity increases.
Can this formula be used for any type of vehicle or machine?
This ideal steady-lift relation uses vertical speed and power delivered to the load. It omits acceleration, friction and drivetrain losses, and does not determine safe working load, rigging strength, hoist capacity or a motor input rating.
Is there a difference between mechanical horsepower and metric horsepower?
Yes. Mechanical horsepower (commonly used in the United States) is defined as approximately 745.7 watts. Metric horsepower (PS) is defined as approximately 735.5 watts. If you use a different horsepower definition, the constant in the formula changes slightly.
