NEDC to EPA range converter
A NEDC range figure is about 58 % higher than the same car's EPA figure. Example: 400 km NEDC is about 254 km EPA.
NEDC to EPA conversion table
| NEDC (km) | EPA (km) | Winter estimate (km) |
|---|---|---|
| 150 | 95 | 71 |
| 200 | 127 | 95 |
| 250 | 159 | 119 |
| 300 | 190 | 143 |
| 350 | 222 | 167 |
| 400 | 254 | 190 |
| 450 | 286 | 214 |
| 500 | 317 | 238 |
| 550 | 349 | 262 |
| 600 | 381 | 286 |
| 650 | 413 | 309 |
| 700 | 444 | 333 |
| 750 | 476 | 357 |
| 800 | 508 | 381 |
Formula: EPA range = NEDC range × 0.635. The winter estimate assumes about 25 % less than the converted figure.
What are NEDC and EPA?
NEDC
NEDC was the European standard until 2017. It uses a gentle laboratory cycle at low speeds, so its range figures are typically 15–25 % too optimistic compared with WLTP.
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 NEDC to EPA?
Multiply the NEDC figure by 0.635. For example, 400 km NEDC × 0.635 = 254 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.