How do I convert MPG (UK) to kWh/100mi?

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

What is the formula for MPG (UK) to kWh/100mi?

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

When should I use MPG (UK) vs kWh/100mi?

MPG (UK) and kWh/100mi 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 (UK) to kWh/100mi

Use the live converter below to translate between Mile per Gallon (UK) (MPG (UK)) and kWh per 100 miles (kWh/100mi). 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 (UK) → kWh/100mi

Mile per Gallon (UK)

MPG (UK)

kWh per 100 miles

1,667.4924

kWh/100mi

Rounded result (4 decimals max)

Formula

1 MPG (UK) = 1,667.4924 kWh/100mi

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/100mi to MPG (UK).

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MPG (UK) to kWh/100mi 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 (UK) (MPG (UK))	kWh per 100 miles (kWh/100mi)
2 MPG (UK)	833.7462 kWh/100mi
4 MPG (UK)	416.8731 kWh/100mi
6 MPG (UK)	277.9154 kWh/100mi
8 MPG (UK)	208.4366 kWh/100mi
10 MPG (UK)	166.7492 kWh/100mi
15 MPG (UK)	111.1662 kWh/100mi
20 MPG (UK)	83.3746 kWh/100mi

kWh/100mi back to MPG (UK)

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

kWh per 100 miles (kWh/100mi)	Mile per Gallon (UK) (MPG (UK))
2 kWh/100mi	833.7462 MPG (UK)
4 kWh/100mi	416.8731 MPG (UK)
6 kWh/100mi	277.9154 MPG (UK)
8 kWh/100mi	208.4366 MPG (UK)
10 kWh/100mi	166.7492 MPG (UK)
15 kWh/100mi	111.1662 MPG (UK)
20 kWh/100mi	83.3746 MPG (UK)