How do I convert MPG (US) to kWh/100km?

Use the formula shown above or enter a value to see MPG (US) converted to kWh/100km instantly.

What is the formula for MPG (US) to kWh/100km?

The converter calculates kWh/100km by applying the category-specific conversion factor for Fuel Economy.

When should I use MPG (US) vs kWh/100km?

MPG (US) and kWh/100km are both part of the Fuel Economy category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Fuel Economy & Efficiency Reference

Convert MPG (US) to kWh/100km

Use the live converter below to translate between Mile per Gallon (US) (MPG (US)) and kWh per 100 km (kWh/100km). Scroll further for quick examples, formula tips, and related units.

Formula insight: Converting between efficiency (km/L, MPG) and consumption (L/100km) units requires using the inverse relationship: consumption = 100 ÷ efficiency.

Convert

MPG (US) → kWh/100km

Mile per Gallon (US)

MPG (US)

kWh per 100 km

2,234.5385

kWh/100km

Rounded result (4 decimals max)

Formula

1 MPG (US) = 2,234.5385 kWh/100km

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table
Fuel Economy Guide (Model Year 2024)
U.S. Environmental Protection Agency & U.S. Department of Energy. Describes how MPG, km/L, and L/100 km ratings are calculated for the U.S. Monroney label and how to interpret efficiency versus consumption metrics. View source
Alternative Fuels Data Center: Fuel Properties Comparison
U.S. Department of Energy. Lists gasoline lower heating value (about 32 MJ/gal, which is roughly 9.5 kWh per liter), letting the app convert between liquid-fuel efficiency (km/L) and EV metrics (km/kWh, kWh/100 km, Wh/km). View source

Results update as you type. Swap the direction to convert back from kWh/100km to MPG (US).

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MPG (US) to kWh/100km quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Mile per Gallon (US) (MPG (US))	kWh per 100 km (kWh/100km)
2 MPG (US)	1,117.2693 kWh/100km
4 MPG (US)	558.6346 kWh/100km
6 MPG (US)	372.4231 kWh/100km
8 MPG (US)	279.3173 kWh/100km
10 MPG (US)	223.4539 kWh/100km
15 MPG (US)	148.9692 kWh/100km
20 MPG (US)	111.7269 kWh/100km

kWh/100km back to MPG (US)

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

kWh per 100 km (kWh/100km)	Mile per Gallon (US) (MPG (US))
2 kWh/100km	1,117.2693 MPG (US)
4 kWh/100km	558.6346 MPG (US)
6 kWh/100km	372.4231 MPG (US)
8 kWh/100km	279.3173 MPG (US)
10 kWh/100km	223.4539 MPG (US)
15 kWh/100km	148.9692 MPG (US)
20 kWh/100km	111.7269 MPG (US)