How do I convert kWh/100mi to Wh/mi?

Use the formula shown above or enter a value to see kWh/100mi converted to Wh/mi instantly.

What is the formula for kWh/100mi to Wh/mi?

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

When should I use kWh/100mi vs Wh/mi?

kWh/100mi and Wh/mi 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 kWh/100mi to Wh/mi

Use the live converter below to translate between kWh per 100 miles (kWh/100mi) and Watt-hour per mile (Wh/mi). 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

kWh/100mi → Wh/mi

kWh per 100 miles

kWh/100mi

Watt-hour per mile

25.8999

Wh/mi

Rounded result (4 decimals max)

Formula

1 kWh/100mi = 25.8999 Wh/mi

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 Wh/mi to kWh/100mi.

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kWh/100mi to Wh/mi quick table

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

kWh per 100 miles (kWh/100mi)	Watt-hour per mile (Wh/mi)
2 kWh/100mi	51.7998 Wh/mi
4 kWh/100mi	103.5995 Wh/mi
6 kWh/100mi	155.3993 Wh/mi
8 kWh/100mi	207.199 Wh/mi
10 kWh/100mi	258.9988 Wh/mi
15 kWh/100mi	388.4982 Wh/mi
20 kWh/100mi	517.9976 Wh/mi

Wh/mi back to kWh/100mi

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

Watt-hour per mile (Wh/mi)	kWh per 100 miles (kWh/100mi)
2 Wh/mi	0.0772 kWh/100mi
4 Wh/mi	0.1544 kWh/100mi
6 Wh/mi	0.2317 kWh/100mi
8 Wh/mi	0.3089 kWh/100mi
10 Wh/mi	0.3861 kWh/100mi
15 Wh/mi	0.5792 kWh/100mi
20 Wh/mi	0.7722 kWh/100mi