UK Tesla calculator
Tesla Charge Time Calculator (UK)
How long from 20% to 80%? Pick your charger — 3-pin, 7kW home, DC rapid or Supercharger V3 — and see a realistic time that accounts for the onboard AC limit and DC charging taper, not the headline peak kW.
Your figures
All figures are editable estimates, checked 2026-07-13. We never present a rate as fixed fact — see our sources.
Result
Estimate only — confirm live figures with Tesla and your suppliers.
How this is worked out
Energy needed = usable battery × (to − from)%. Time = energy ÷ effective power. AC charging is capped at the car's ~11 kW onboard limit (so a 22 kW supply doesn't halve the time on a single-phase-limited car); DC rapid/Supercharger uses an average of ~62% of peak to reflect the real charging taper above 50%. Battery sizes checked 2026-07-13.
Questions
How long does a Tesla take to charge on a 3-pin plug?
A very long time — a 3-pin plug delivers only ~2.3 kW, so a 20–80% top-up can take well over a day on a bigger battery. It's fine as an occasional backup, but a 7 kW home charger is far more practical.
Why doesn't a Supercharger charge at its full 250 kW the whole time?
The rate tapers as the battery fills to protect it, so peak power only holds for the lower part of the charge. That's why we average the effective DC power rather than using the headline figure.