Tooldeon

EV range calculator

Enter the battery capacity, how much of it you can use, and your car's consumption. The calculator gives the range in kilometres and miles. A weather setting scales the consumption to show how cold or hot conditions can shorten the range; it is a rough planning guess, not a measurement.

Units
kWh
%
kWh/100 mi
Range in kilometres310 km
Range in miles193 mi
Usable energy
54 kWh
Consumption with the weather adjustment
17.4 kWh/100 km
Consumption with the weather adjustment
28 kWh/100 mi

Runs in your browser: nothing you enter is sent anywhere.

How to use it

  1. Pick metric or US units and enter the battery capacity in kWh.
  2. Set the usable share of the battery.
  3. Enter the consumption in kWh per 100 km or 100 miles.
  4. Choose the weather to see a rough effect, then read the range.

How it works

  • Usable energy = capacity × usable share ÷ 100.
  • Adjusted consumption = consumption ÷ weather factor.
  • Range = usable energy × 100 ÷ adjusted consumption.

Worked example

A 60 kWh battery with 90% usable holds 54 kWh. At 17 kWh/100 km in mild weather the range is 317.6 km (197.4 mi). With the cold setting the consumption becomes 17 ÷ 0.75 = 22.7 kWh/100 km and the range is 238.2 km.

Tips

  • Take the weather factors as a rough guide. Replace them with your own measured winter consumption when possible.
  • Plan charging stops at 10-80% rather than driving to zero; the tool shows the full usable energy.

Frequently asked questions

How is the range calculated?

Range = usable energy ÷ consumption. With a 60 kWh battery of which 90% is usable, you have 54 kWh. At 17 kWh per 100 km that is 54 × 100 ÷ 17 = 317.6 km.

What are the temperature options based on?

They are rough planning factors: the consumption is divided by 1.00, 0.90, 0.75 or 0.92 for mild, cool, cold and hot weather. Real losses depend on the car, its heat pump, preconditioning, speed and trip length, so they are guesses. Use your own winter consumption if you know it.

What is usable capacity?

Car makers often reserve part of the battery for protection, so the net capacity is smaller than the gross one. Enter the net figure with 100%, or the gross figure with the usable share.

Where do I find my car's consumption?

The trip computer shows it in kWh per 100 km or per 100 miles, and the official figure is in the car's specification. Highway driving at higher speed uses noticeably more than the mixed-cycle figure.

More in Cars

All tools in this category: Cars ·Updated November 3, 2026

Privacy choices

Google Analytics shows us which tools are used and whether they work. It may set cookies. Your choice is kept in this browser.