Convert Horsepower-hour to Watt-hour Online

About Horsepower-hour to Watt-hour Conversion

This converter converts Horsepower-hour (hp⋅h) to Watt-hour (Wh). One Horsepower-hour (hp⋅h) equals 745.6991666666667 Watt-hour (Wh).

Formula:

1 Horsepower-hour (hp⋅h) = 745.6991666666667 Watt-hour (Wh)

Example:

1 hp⋅h = 745.6991666666667 Wh
2 hp⋅h = 1491.3983333333333 Wh

Horsepower-hour (hp⋅h) to Watt-hour (Wh) Conversion

Convert Horsepower-hour to Watt-hour using the exact conversion factor. This page provides the formula, worked examples, and real-world use cases for practical understanding.

Conversion Formula

Watt-hour = Horsepower-hour × 745.699167

To convert Horsepower-hour (hp⋅h) to Watt-hour (Wh), multiply the value by 745.699167. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 hp_h to Wh.

  • Step 1: Write the formula: Wh = hp_h × 745.699167
  • Step 2: Substitute: 1 × 745.699167
  • Step 3: Result: 745.699167 Wh
So, 1 hp_h = 745.699167 Wh.

About the Units

Horsepower-hour (hp⋅h)

One Horsepower-hour (hp⋅h) equals 745.699167 Watt-hour (Wh)

Used for extremely large distances such as astronomical or planetary scales.

Watt-hour (Wh)

One Watt-hour (Wh) equals 0.001341 Horsepower-hour (hp⋅h)

A widely used unit across scientific, engineering, and measurement contexts.

Where This Conversion Is Used

  • Converting values from Horsepower-hour to Watt-hour for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Watt-hour representation.
  • Applied when comparing different measurement systems across tools and documents.
  • Essential in astronomy, orbital mechanics, and large-scale simulations.

Frequently Asked Questions

How many Watt-hour (Wh) are in 1 Horsepower-hour (hp⋅h)?

1 hp_h = 745.699167 Wh.

What is the formula for converting Horsepower-hour (hp⋅h) to Watt-hour (Wh)?

Multiply the hp_h value by 745.699167.

Can I reverse the conversion?

Yes. 1 Wh = 0.001341 hp_h.

Conclusion

By applying the conversion factor shown above, you can reliably convert Horsepower-hour (hp⋅h) to Watt-hour (Wh) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Horsepower-hour to Other Units

Horsepower-hour to Joule

1 hp_h = 2684517 J

1 Horsepower-hour (hp⋅h) = 2684517 Joules (J)

1 hp_h equals 2684517 Js.

Horsepower-hour to Kilojoule

1 hp_h = 2684.517 kJ

1 Horsepower-hour (hp⋅h) = 2684.517 Kilojoules (kJ)

1 hp_h equals 2684.517 kJs.

Horsepower-hour to Megajoule

1 hp_h = 2.684517 MJ

1 Horsepower-hour (hp⋅h) = 2.684517 Megajoules (MJ)

1 hp_h equals 2.684517 MJs.

Horsepower-hour to Gigajoule

1 hp_h = 0.002684517 GJ

1 Horsepower-hour (hp⋅h) = 0.002684517 Gigajoule (GJ)

1 hp_h equals 0.002684517 GJ.

Horsepower-hour to Watt-hour

1 hp_h = 745.6991666666667 Wh

1 Horsepower-hour (hp⋅h) = 745.6991666666667 Watt-hours (Wh)

1 hp_h equals 745.6991666666667 Whs.

Horsepower-hour to Kilowatt-hour

1 hp_h = 0.7456991666666667 kWh

1 Horsepower-hour (hp⋅h) = 0.7456991666666667 Kilowatt-hour (kWh)

1 hp_h equals 0.7456991666666667 kWh.

Horsepower-hour to Megawatt-hour

1 hp_h = 0.0007456991666666666 MWh

1 Horsepower-hour (hp⋅h) = 0.0007456991666666666 Megawatt-hour (MWh)

1 hp_h equals 0.0007456991666666666 MWh.

Horsepower-hour to Erg

1 hp_h = 26845170000000 erg

1 Horsepower-hour (hp⋅h) = 26845170000000 Ergs

1 hp_h equals 26845170000000 ergs.

Horsepower-hour to Calorie

1 hp_h = 641614.9617590822 cal

1 Horsepower-hour (hp⋅h) = 641614.9617590822 Calories (cal)

1 hp_h equals 641614.9617590822 cals.

Horsepower-hour to Kilocalorie

1 hp_h = 641.6149617590822 kcal

1 Horsepower-hour (hp⋅h) = 641.6149617590822 Kilocalories (kcal)

1 hp_h equals 641.6149617590822 kcals.

Horsepower-hour to British Thermal Unit

1 hp_h = 2544.4211703599794 BTU

1 Horsepower-hour (hp⋅h) = 2544.4211703599794 British Thermal Units (BTU)

1 hp_h equals 2544.4211703599794 BTUs.

Horsepower-hour to Foot-pound force

1 hp_h = 1979998.1287753242 ft_lbf

1 Horsepower-hour (hp⋅h) = 1979998.1287753242 Foot-pound forces (ft⋅lbf)

1 hp_h equals 1979998.1287753242 ft_lbves.

Horsepower-hour to Therm

1 hp_h = 0.025444211703599794 therm_us

1 Horsepower-hour (hp⋅h) = 0.025444211703599794 Therm (US)

1 hp_h equals 0.025444211703599794 therm_us.

Horsepower-hour to Electronvolt

1 hp_h = 1.6755437216044185e+25 eV

1 Horsepower-hour (hp⋅h) = 1.6755437216044185e+25 Electronvolts (eV)

1 hp_h equals 1.6755437216044185e+25 eVs.

Horsepower-hour to Kiloelectronvolt

1 hp_h = 1.6755437216044184e+22 keV

1 Horsepower-hour (hp⋅h) = 1.6755437216044184e+22 Kiloelectronvolts (keV)

1 hp_h equals 1.6755437216044184e+22 keVs.

Horsepower-hour to Megaelectronvolt

1 hp_h = 16755437216044182000 MeV

1 Horsepower-hour (hp⋅h) = 16755437216044182000 Megaelectronvolts (MeV)

1 hp_h equals 16755437216044182000 MeVs.

Horsepower-hour to Gigaelectronvolt

1 hp_h = 16755437216044182 GeV

1 Horsepower-hour (hp⋅h) = 16755437216044182 Gigaelectronvolts (GeV)

1 hp_h equals 16755437216044182 GeVs.

Horsepower-hour to Tonne of Oil Equivalent

1 hp_h = 0.00006411858698767555 toe

1 Horsepower-hour (hp⋅h) = 0.00006411858698767555 Tonne of Oil Equivalent (toe)

1 hp_h equals 0.00006411858698767555 toe.

Horsepower-hour to Tonne of Coal Equivalent

1 hp_h = 0.00009159798141096508 tce

1 Horsepower-hour (hp⋅h) = 0.00009159798141096508 Tonne of Coal Equivalent (tce)

1 hp_h equals 0.00009159798141096508 tce.

Horsepower-hour to Hartree

1 hp_h = 6.157509604463667e+23 hartree

1 Horsepower-hour (hp⋅h) = 6.157509604463667e+23 Hartrees

1 hp_h equals 6.157509604463667e+23 hartrees.

Convert Watt-hour to Other Units

Watt-hour to Joule

1 Wh = 3600 J

1 Watt-hour (Wh) = 3600 Joules (J)

1 Wh equals 3600 Js.

Watt-hour to Kilojoule

1 Wh = 3.6 kJ

1 Watt-hour (Wh) = 3.6 Kilojoules (kJ)

1 Wh equals 3.6 kJs.

Watt-hour to Megajoule

1 Wh = 0.0036 MJ

1 Watt-hour (Wh) = 0.0036 Megajoule (MJ)

1 Wh equals 0.0036 MJ.

Watt-hour to Gigajoule

1 Wh = 0.0000036 GJ

1 Watt-hour (Wh) = 0.0000036 Gigajoule (GJ)

1 Wh equals 0.0000036 GJ.

Watt-hour to Kilowatt-hour

1 Wh = 0.001 kWh

1 Watt-hour (Wh) = 0.001 Kilowatt-hour (kWh)

1 Wh equals 0.001 kWh.

Watt-hour to Megawatt-hour

1 Wh = 0.000001 MWh

1 Watt-hour (Wh) = 0.000001 Megawatt-hour (MWh)

1 Wh equals 0.000001 MWh.

Watt-hour to Erg

1 Wh = 36000000000 erg

1 Watt-hour (Wh) = 36000000000 Ergs

1 Wh equals 36000000000 ergs.

Watt-hour to Calorie

1 Wh = 860.4206500956022 cal

1 Watt-hour (Wh) = 860.4206500956022 Calories (cal)

1 Wh equals 860.4206500956022 cals.

Watt-hour to Kilocalorie

1 Wh = 0.8604206500956023 kcal

1 Watt-hour (Wh) = 0.8604206500956023 Kilocalorie (kcal)

1 Wh equals 0.8604206500956023 kcal.

Watt-hour to British Thermal Unit

1 Wh = 3.412128220196008 BTU

1 Watt-hour (Wh) = 3.412128220196008 British Thermal Units (BTU)

1 Wh equals 3.412128220196008 BTUs.

Watt-hour to Foot-pound force

1 Wh = 2655.223738047167 ft_lbf

1 Watt-hour (Wh) = 2655.223738047167 Foot-pound forces (ft⋅lbf)

1 Wh equals 2655.223738047167 ft_lbves.

Watt-hour to Horsepower-hour

1 Wh = 0.0013410233572743254 hp_h

1 Watt-hour (Wh) = 0.0013410233572743254 Horsepower-hour (hp⋅h)

1 Wh equals 0.0013410233572743254 hp_h.

Watt-hour to Therm

1 Wh = 0.00003412128220196008 therm_us

1 Watt-hour (Wh) = 0.00003412128220196008 Therm (US)

1 Wh equals 0.00003412128220196008 therm_us.

Watt-hour to Electronvolt

1 Wh = 2.2469432668058747e+22 eV

1 Watt-hour (Wh) = 2.2469432668058747e+22 Electronvolts (eV)

1 Wh equals 2.2469432668058747e+22 eVs.

Watt-hour to Kiloelectronvolt

1 Wh = 22469432668058747000 keV

1 Watt-hour (Wh) = 22469432668058747000 Kiloelectronvolts (keV)

1 Wh equals 22469432668058747000 keVs.

Watt-hour to Megaelectronvolt

1 Wh = 22469432668058744 MeV

1 Watt-hour (Wh) = 22469432668058744 Megaelectronvolts (MeV)

1 Wh equals 22469432668058744 MeVs.

Watt-hour to Gigaelectronvolt

1 Wh = 22469432668058.746 GeV

1 Watt-hour (Wh) = 22469432668058.746 Gigaelectronvolts (GeV)

1 Wh equals 22469432668058.746 GeVs.

Watt-hour to Tonne of Oil Equivalent

1 Wh = 8.598452278589854e-8 toe

1 Watt-hour (Wh) = 8.598452278589854e-8 Tonne of Oil Equivalent (toe)

1 Wh equals 8.598452278589854e-8 toe.

Watt-hour to Tonne of Coal Equivalent

1 Wh = 1.2283503255128362e-7 tce

1 Watt-hour (Wh) = 1.2283503255128362e-7 Tonne of Coal Equivalent (tce)

1 Wh equals 1.2283503255128362e-7 tce.

Watt-hour to Hartree

1 Wh = 825736420222677000000 hartree

1 Watt-hour (Wh) = 825736420222677000000 Hartrees

1 Wh equals 825736420222677000000 hartrees.