Free Tool
SU7 Real-World Range Calculator
CLTC range is optimistic. This calculator estimates what you'll actually see based on speed, temperature, and AC usage.
CLTC range: 902 km
110 km/h
306090120150
20°C
-2002040
Estimated real range
608 km
67% of CLTC rating
CLTC (China rating)902 km
WLTP (Europe equivalent)704 km
Temperature factor×1.00
Speed factor×0.92
AC factor×0.94
How this works
- 01CLTC range is converted to WLTP-equivalent at ~78% (industry-typical conversion for Chinese EVs).
- 02Temperature factor: optimal 18-26°C; ranges below 0°C or above 35°C reduce real range significantly due to battery thermal management.
- 03Speed factor: aerodynamic drag scales with the square of velocity; cruising at 130 km/h vs 90 km/h reduces range by ~18%.
- 04AC factor models cabin climate load: 0.78 in Max use (heat or cool), 0.94 in Eco.
- 05Real-world tests by Chinese motoring channels show realistic-to-CLTC ratios of 60-78% depending on conditions; this calculator targets the middle of that range.
- 06For absolute precision, use a long-form trip planner like A Better Route Planner, which models elevation and weather forecasts.