MPG TO L/100KM

66 MPG to L/100km and km/L.

66 US MPG = 3.56 L/100 km = 28.06 km/L.
66 UK MPG = 4.28 L/100 km = 23.36 km/L.
The answer depends on which gallon your figure uses. UK (imperial) gallons are about 20% bigger.

66 US MPG

3.56L/100 km

Litres per km: 0.0356 L/km
Kilometres per litre: 28.06 km/L
Equivalent UK MPG: 79.26

Use this for US car specs, EPA ratings and American reviews.

66 UK (imperial) MPG

4.28L/100 km

Litres per km: 0.0428 L/km
Kilometres per litre: 23.36 km/L
Equivalent US MPG: 54.96

Use this for UK, Irish and older Australian or Canadian figures.

Convert a different MPG figure 4 L/100km to MPG

Is 66 MPG good?

As US MPG (3.6 L/100 km): exceptional. That is exceptional fuel economy, in the range of hybrids and the most efficient small cars.

As UK MPG (4.3 L/100 km): exceptional. That is exceptional fuel economy, in the range of hybrids and the most efficient small cars.

A rough guide for passenger vehicles. Real-world use varies with driving style, speed, load and conditions, and is often higher than official test figures.

Fuel used at 66 MPG

Distance	US MPG	UK MPG
100 km	3.6 L	4.3 L
500 km	17.8 L	21.4 L
1,000 km	35.6 L	42.8 L
15,000 km (a typical year)	534.6 L	642.0 L
Range on a 50 L tank	1,403 km	1,168 km

What does that cost to run?

Enter your local fuel price per litre to see the running cost.

Fuel price per litre Distance per year (km)

	66 US MPG	66 UK MPG
Per 100 km	—	—
Per year	—	—

Want trip costs, miles, gallon prices or a two-car comparison? Use the full fuel cost calculator.

MPG values near 66

MPG	US L/100 km	UK L/100 km	US km/L	UK km/L
61 MPG	3.86	4.63	25.93	21.59
62 MPG	3.79	4.56	26.36	21.95
63 MPG	3.73	4.48	26.78	22.30
64 MPG	3.68	4.41	27.21	22.66
65 MPG	3.62	4.35	27.63	23.01
66 MPG	3.56	4.28	28.06	23.36
67 MPG	3.51	4.22	28.48	23.72
68 MPG	3.46	4.15	28.91	24.07
69 MPG	3.41	4.09	29.33	24.43
70 MPG	3.36	4.04	29.76	24.78
71 MPG	3.31	3.98	30.19	25.13

How to convert 66 MPG to L/100km and km/L

Divide a fixed constant by the MPG figure. The constant is the litres in one gallon, divided by the kilometres in one mile, multiplied by 100.

US: 235.215 ÷ 66 = 3.56 L/100 km

UK: 282.481 ÷ 66 = 4.28 L/100 km

For kilometres per litre, multiply instead: US MPG × 0.4251 = km/L, so 66 US MPG = 28.06 km/L. For UK MPG use × 0.3540, so 66 UK MPG = 23.36 km/L.

Based on 1 mile = 1.609344 km, 1 US gallon = 3.785411784 L and 1 imperial gallon = 4.54609 L (NIST definitions).