EV Range Calculator β Convert Between Standards
Every standard (WLTP, EPA, CLTC, NEDC, JC08) measures range under different conditions. Convert values between standards and find out how certified range differs and what to expect in winter.
Range in All Standards at a Glance
Enter Range and Standards
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Why does EV range differ by standard?
EV manufacturers test range under different conditions β speed, temperature, air conditioning, driving style. Therefore CLTC (China) typically shows the highest values, while EPA (USA) is the most conservative and closest to real-world range. WLTP is the European compromise that replaced the older NEDC standard in 2017.
πͺπΊ WLTP β European Standard
Valid in the EU since 2017. Tests at speeds of 10β130 km/h, includes urban and motorway driving. More realistic than the older NEDC, but still optimistic compared to everyday use β real range is typically 10β20 % lower.
πΊπΈ EPA β US Standard
The most conservative of the world standards. EPA values are approximately 20β30 % lower than WLTP. Closest to real-world everyday range β if a car meets EPA, it rarely disappoints in reality.
π¨π³ CLTC and NEDC β Optimistic Standards
CLTC tests at lower speeds β results are typically 15β20 % higher than WLTP. NEDC (old EU standard) was even more optimistic and has been replaced by WLTP since 2017.
Quick conversion tables: NEDC and CLTC to WLTP and EPA
Typical figures from the same coefficients the calculator uses (WLTP = 1.00, EPA = 0.73, NEDC = 1.15, CLTC = 1.18). EPA is the most conservative standard, so a car quoted at 400 km NEDC is closer to 254 km on the US EPA cycle.
NEDC range converted to WLTP and EPA
| NEDC | WLTP | EPA |
|---|---|---|
| 300 km | 261 km | 190 km |
| 350 km | 304 km | 222 km |
| 400 km | 348 km | 254 km |
| 450 km | 391 km | 286 km |
| 500 km | 435 km | 317 km |
| 550 km | 478 km | 349 km |
| 600 km | 522 km | 381 km |
| 650 km | 565 km | 413 km |
| 700 km | 609 km | 444 km |
CLTC range converted to WLTP and EPA
| CLTC | WLTP | EPA |
|---|---|---|
| 300 km | 254 km | 186 km |
| 350 km | 297 km | 217 km |
| 400 km | 339 km | 247 km |
| 450 km | 381 km | 278 km |
| 500 km | 424 km | 309 km |
| 550 km | 466 km | 340 km |
| 600 km | 508 km | 371 km |
| 650 km | 551 km | 402 km |
| 700 km | 593 km | 433 km |
Frequently Asked Questions about EV Range
How do I convert NEDC to WLTP or EPA?
Divide the NEDC figure by 1.15 to get WLTP, then multiply by 0.73 for EPA. A car rated at 400 km NEDC is about 348 km WLTP and 254 km EPA. These are averages; individual cars can differ by several percent.
How do I convert CLTC to WLTP?
Divide the CLTC figure by 1.18. For example, 600 km CLTC is about 508 km WLTP and 371 km EPA. Chinese brands launching in Europe usually publish a WLTP value later, which is the one to compare.
How many km does an EV really drive?
In summer typically 80β90 % of WLTP. In winter at temperatures below β5 Β°C range can drop to 60β75 % of WLTP. Air conditioning, heating and driving style have a major impact. Our calculator therefore also shows a winter estimate.
How do standards affect EV choice?
When comparing cars with different standards, always convert values to the same base (preferably WLTP or EPA). A car with 600 km CLTC corresponds to approximately 508 km WLTP or 371 km EPA.
How to increase real EV range?
Key tips: preheat the battery in the garage in winter, keep charge at 20β80 %, drive economically (no harsh braking), use energy recuperation. On the motorway at 130 km/h consumption increases by 30β50 % compared to the standard.
Why do different models in the same category vary in range?
Battery capacity, aerodynamic drag, vehicle weight, tyre type and motor efficiency all play a role. A compact hatchback consumes 14β16 kWh/100 km, while a large EV SUV 20β25 kWh/100 km.
Conversion coefficients are indicative average values. Actual range depends on the specific vehicle, temperature and driving style.