CLTC to EPA range converter
A CLTC range figure is about 62 % higher than the same car's EPA figure. Example: 400 km CLTC is about 247 km EPA.
CLTC to EPA conversion table
| CLTC (km) | EPA (km) | Winter estimate (km) |
|---|---|---|
| 150 | 93 | 70 |
| 200 | 124 | 93 |
| 250 | 155 | 116 |
| 300 | 186 | 139 |
| 350 | 217 | 162 |
| 400 | 247 | 186 |
| 450 | 278 | 209 |
| 500 | 309 | 232 |
| 550 | 340 | 255 |
| 600 | 371 | 278 |
| 650 | 402 | 302 |
| 700 | 433 | 325 |
| 750 | 464 | 348 |
| 800 | 495 | 371 |
Formula: EPA range = CLTC range × 0.619. The winter estimate assumes about 25 % less than the converted figure.
What are CLTC and EPA?
CLTC
CLTC is the Chinese test cycle. It is run at lower average speeds than WLTP, so the same car shows roughly 15–20 % more range. Chinese brands launching in Europe usually publish a WLTP value later; that is the one to compare.
EPA
EPA is the US standard. It applies an extra correction to the lab result, which makes it the most conservative of the four and the closest to what drivers see in mixed real-world use.
Frequently asked questions
How do I convert CLTC to EPA?
Multiply the CLTC figure by 0.619. For example, 400 km CLTC × 0.619 = 247 km EPA. This is an average ratio: individual cars can differ by several percent.
Which figure is closest to real-world range?
EPA is the most conservative and usually the closest to mixed everyday driving. In winter, on the motorway or with a heavy load, expect a further 20–30 % less than any of these figures.
Why do the standards give different results?
Each standard uses a different test cycle: speeds, acceleration, temperature and how the lab result is adjusted differ. The car is the same; the yardstick is not.
Want the numbers for a specific car? Open the full range calculator or see the longest-range electric cars.