Germany has about 50 million passenger cars averaging 130 PS. What's the total fleet power in GW?

50,000,000 × 130 PS = 6,500,000,000 PS × 0.000000735499 = 4,781 GW. That dwarfs Germany's entire electricity grid — illustrating why most vehicles are idle most of the time.

I'm calculating fleet electrification for 10,000 European trucks averaging 400 PS. What GW of charging infrastructure would be needed?

10,000 × 400 = 4,000,000 PS × 0.000000735499 = 2.94 GW. But trucks charge intermittently, so a diversity factor of 10–20% gives 0.3–0.6 GW of actual simultaneous load.

Is PS to GW conversion ever used in everyday engineering?

Rarely in direct PS-to-GW calculations. It appears in academic energy transition papers and national fleet electrification studies where PS-rated engines need to be expressed in GW-scale policy language.

How does the PS to GW conversion compare to hp to GW?

1 PS = 0.000000735499 GW; 1 hp = 0.000000745700 GW. PS gives 1.4% less GW per unit than hp — because 1 PS = 735.5 W vs. 1 hp = 745.7 W.

Metric Horsepower (PS) to Gigawatts Converter

Enter a value to instantly convert between power units.

From

Precision4 dp

1 Horsepower (metric) = 7.3550e-7 Gigawatt

Key Formulas

Kilowatt → Horsepower (mech)

hp = kW × 1.34102

Horsepower (mech) → Kilowatt

kW = hp × 0.7457

Watt → Kilowatt

kW = W × 0.001

Kilowatt → Watt

W = kW × 1000

Formula

GW = PS × 0.000000735499

This conversion becomes relevant when aggregating the total PS of large vehicle, ship, or industrial motor fleets and expressing the result in gigawatts for comparison with national grid capacity. A country with 100 million passenger vehicles averaging 120 PS each has about 88 GW of installed vehicle propulsion power — a figure cited in EV transition planning studies.

Source: NIST SP 811, Table B.8

Last reviewed: 2026-06-11 · see our methodology

Frequently Asked Questions

Real-World Examples

1,359,622 PS = 1 GW — the metric equivalent of the 1,341,022 hp = 1 GW benchmark.

1359622 PS = 1 GW

500,000 PS of combined industrial motor capacity in a manufacturing region = 0.37 GW — a significant electrification target.

500000 PS = 0.3677 GW

2,000,000 PS of fleet shipping engine capacity = 1.47 GW — relevant for alternative fuel and electric propulsion transition studies.

2000000 PS = 1.471 GW

100,000 PS of industrial diesel generator capacity in a region = 73.5 MW — significant for grid electrification project sizing.

100000 PS = 0.0735 GW

kw to hp hp to kw watts to kw kw to watts mw to kw kw to mw

Metric Horsepower (PS) to Gigawatts Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

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