ConvertThemAll

US gallons per 100 miles to Litres per 100 km

Type a value in US gallons per 100 miles and get the result in Litres per 100 km, calculated exactly.

1 gal/100 mi (US) ≈ 2.352145833 L/100 km Fuel economy converter

30 US gallons per 100 miles = 70.564375 Litres per 100 km

Precision

Exact factorThis result is exact.

Paper tape

ConvertThemAll

  1. Your conversions print here.

0 lines · kept on this device only

Formula

L/100 km = gal/100 mi (US) × 2.35214583333

To convert US gallons per 100 miles to Litres per 100 km, multiply the value by 2.35214583333.

Worked examples

  1. 1 gal/100 mi (US) × 2.35214583333 ≈ 2.352145833 L/100 km
  2. 30 gal/100 mi (US) × 2.35214583333 = 70.564375 L/100 km
  3. 100 gal/100 mi (US) × 2.35214583333 ≈ 235.2145833 L/100 km

This factor is exact by definition.

Conversion table

US gallons per 100 miles to Litres per 100 km
US gallons per 100 miles (gal/100 mi (US))Litres per 100 km (L/100 km)
10≈ 23.52146
1535.2821875
20≈ 47.04292
25≈ 58.80365
3070.564375
35≈ 82.3251
40≈ 94.08583
45105.8465625
50≈ 117.6073
60141.12875
70≈ 164.6502

Values marked ≈ are rounded; the rest are exact.

Reverse table: Litres per 100 km to US gallons per 100 miles
Litres per 100 km to US gallons per 100 miles
Litres per 100 km (L/100 km)US gallons per 100 miles (gal/100 mi (US))
10≈ 4.251437
15≈ 6.377156
20≈ 8.502874
25≈ 10.62859
30≈ 12.75431
35≈ 14.88003
40≈ 17.00575
45≈ 19.13147
50≈ 21.25719
60≈ 25.50862
70≈ 29.76006

Unit definitions

US gallons per 100 miles gal/100 mi (US)
US gallons used to travel 100 miles, as shown on US fuel economy labels.
Litres per 100 km L/100 km
Litres of fuel used to travel 100 kilometres; lower is more economical.

Questions people ask

US gallons per 100 miles to Litres per 100 km: what is the conversion factor?

One gal/100 mi (US) is ≈ 2.352145833 L/100 km.

How do I convert US gallons per 100 miles to Litres per 100 km?

Use the formula above. For example, 30 gal/100 mi (US) = 70.564375 L/100 km.

Is the conversion exact?

Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.

Factors checked 19 October 2026.