km/L to MPG Converter
Convert kilometers per liter (km/L) to miles per gallon (MPG). Formula: MPG (US) = km/L × 2.3522.
How to Convert km/L to MPG
This conversion is linear (a simple multiplication). Both units measure distance per unit of fuel, so they scale proportionally.
- MPG (US) = km/L × 2.35214583 (exact: 3.785411784 L/gal ÷ 1.609344 km/mi)
- MPG (UK) = km/L × 2.82480936 (exact: 4.54609 L/gal ÷ 1.609344 km/mi)
The factor 2.3522 is the inverse of 0.4251 (which converts MPG to km/L).
km/L ↔ MPG Reference Table
Typical fuel-economy values across all four units. Click any km/L value for a dedicated conversion page.
| km/L | MPG (US) | MPG (UK) | L/100km | Category |
|---|---|---|---|---|
| 6 | 14.1 | 16.9 | 16.7 | Poor |
| 8 | 18.8 | 22.6 | 12.5 | Below average |
| 10 | 23.5 | 28.2 | 10.0 | Below average |
| 12 | 28.2 | 33.9 | 8.33 | Average |
| 15 | 35.3 | 42.4 | 6.67 | Very good |
| 18 | 42.3 | 50.8 | 5.56 | Very good |
| 20 | 47.0 | 56.5 | 5.00 | Very good |
| 25 | 58.8 | 70.6 | 4.00 | Excellent |
Common km/L to MPG Conversions
| km/L | MPG (US) | MPG (UK) |
|---|---|---|
| 5 km/L | 11.8 | 14.1 |
| 6 km/L | 14.1 | 16.9 |
| 7 km/L | 16.5 | 19.8 |
| 8 km/L | 18.8 | 22.6 |
| 9 km/L | 21.2 | 25.4 |
| 10 km/L | 23.5 | 28.2 |
| 11 km/L | 25.9 | 31.1 |
| 12 km/L | 28.2 | 33.9 |
| 13 km/L | 30.6 | 36.7 |
| 14 km/L | 32.9 | 39.5 |
| 15 km/L | 35.3 | 42.4 |
| 16 km/L | 37.6 | 45.2 |
| 17 km/L | 40.0 | 48.0 |
| 18 km/L | 42.3 | 50.8 |
| 19 km/L | 44.7 | 53.7 |
| 20 km/L | 47.0 | 56.5 |
| 21 km/L | 49.4 | 59.3 |
| 22 km/L | 51.7 | 62.1 |
| 23 km/L | 54.1 | 65.0 |
| 24 km/L | 56.5 | 67.8 |
| 25 km/L | 58.8 | 70.6 |
| 26 km/L | 61.2 | 73.4 |
| 27 km/L | 63.5 | 76.3 |
| 28 km/L | 65.9 | 79.1 |
| 29 km/L | 68.2 | 81.9 |
| 30 km/L | 70.6 | 84.7 |
| 35 km/L | 82.3 | 98.9 |
| 40 km/L | 94.1 | 113.0 |
Frequently Asked Questions
How to convert km/L to MPG?
Multiply km/L by 2.3522 to get MPG (US). For Imperial MPG, multiply by 2.8248. Example: 15 km/L = 15 × 2.3522 = 35.3 MPG (US) = 42.4 MPG (UK).
What is 15 km/L in MPG?
15 km/L = 15 × 2.3522 = 35.3 MPG (US) = 42.4 MPG (UK) = 6.67 L/100km. That is very good fuel economy, typical of efficient sedans and compact cars.
Is km/L or L/100km better?
L/100km is better for comparing vehicles because it is linear — saving 1 L/100km is always the same amount of fuel. km/L is better for estimating driving range: multiply km/L by fuel remaining to get how far you can go.
Related Fuel Economy Converters
MPG to km/L
Reverse conversion: miles per gallon to kilometers per liter.
L/100km to MPG
Liters per 100 km to miles per gallon.
MPG to L/100km
Miles per gallon to liters per 100 km.
km/L Calculator
Calculate km/L from distance and fuel used.
MPL to MPG
Miles per liter to miles per gallon — specialty unit conversion.
UK MPG to km/L
UK miles per gallon to kilometers per liter.
Comparing Indian and American Car Specs
Looking at a Maruti Suzuki Swift quoted at 22.56 km/L and wondering how it stacks up against the Honda Fit at 33 MPG? A quick conversion settles it: 22.56 × 2.3522 = 53.1 MPG (US). The Indian hatchback is about 60% more efficient on paper, though some of that gap comes down to different testing procedures (ARAI vs EPA) and the smaller, lighter bodies typical of Indian-market vehicles.
Similar math helps when comparing Japanese kei-cars (often advertised at 25–30 km/L) or Brazilian flex-fuel hatchbacks with US competitors. The rule of thumb: multiply km/L by roughly 2.35 to get US MPG, and by roughly 2.82 to get Imperial MPG.
Japanese Fuel Economy Labels: JC08 vs WLTC
Japanese fuel-economy figures from before 2018 use the JC08 cycle, which produces optimistic numbers similar to the old European NEDC. Cars from 2018 onward are tested under WLTC (the Japanese version of WLTP), which is more representative of real driving. When you see a 2017 Toyota Aqua at 37 km/L on paper but a 2020 model at 29 km/L, the newer figure is not worse efficiency — it is more honest.
Range Estimation: km/L in Practice
One advantage of km/L over L/100km is that it makes range estimation intuitive. If your car averages 15 km/L and you have 20 L of fuel left, you can drive 15 × 20 = 300 km. The same calculation in L/100km requires an extra division. Ride-share drivers, long-distance commuters, and cross-country travellers in India and Brazil often prefer km/L for this reason.
Reference Table
| km/L | MPG (US) | Vehicle Example |
|---|---|---|
| 8 | 18.8 | Heavy SUV, pickup (Toyota Hilux diesel) |
| 10 | 23.5 | Midsize SUV |
| 12 | 28.2 | Compact sedan |
| 15 | 35.3 | Efficient compact (Maruti Baleno petrol) |
| 18 | 42.3 | Small hatchback / efficient diesel |
| 22 | 51.7 | Indian hybrid (Maruti Grand Vitara SHVS) |
| 27 | 63.5 | Japanese K-car hybrid (Suzuki Alto Eco) |
Quick Mental Math
Since the factor is 2.35, a fast approximation is: double the km/L and add a third. For 15 km/L that gives 30 + 5 = 35 MPG (actual: 35.3). This trick is accurate within 1% for typical car values. For Imperial MPG, use triple the km/L, subtract 6%.
Full Conversion Table
Need a printable reference? See the full km/L to MPG conversion table with pre-calculated values, CSV download, and print-friendly layout.
