Electric Vehicles (EV)

Home Charger Size Calculator

Lets users compare and budget home charger size instantly with formula, steps and examples — no manual math.

Enter your details

km
Wh/km
hours
114
Your result
Recommended charger
3.3 kW wallbox

You need ≈ 10.0 kWh/night; a 3.3 kW wallbox covers it within your 8-hour window.

Minimum power needed
1.25 kW
Daily energy need
10 kWh

About this calculator

Sizes a home charger from daily kilometres, consumption and your overnight window: kW = daily energy (incl. ~10% losses) ÷ hours. Most households are fully served by a 7.4 kW single-phase wallbox.

Frequently asked questions

Why CalcBreeze

  • ✔ Verified formulas, instant recalculation
  • ✔ Works on every device, no signup needed
  • ✔ Save, share & export results
  • ✔ 1100+ calculators across 50+ categories
  • ✔ Pixel-consistent design across every tool

Explore more Electric Vehicles (EV) calculators

Charging Time Calculator

Lets users compare and budget charging time instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

EV Charging Cost Calculator

Lets users compare and budget ev charging cost instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

EV Range Calculator

Lets users compare and budget ev range instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

EV Total Cost of Ownership Calculator

Lets users compare and budget ev total cost of ownership instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

EV vs Petrol Savings Calculator

Lets users compare and budget ev vs petrol savings instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

Battery Capacity (kWh) Calculator

Lets users compare and budget battery capacity (kwh) instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

Battery Degradation Calculator

Lets users compare and budget battery degradation instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →

CO2 Savings (EV) Calculator

Lets users compare and budget co2 savings (ev) instantly with formula, steps and examples — no manual math.

Electric Vehicles (EV)Open →