E-bike range calculator

Estimate how far your e-bike goes on one charge. This is an estimate, not a promise: we show a range band and every number behind it, and you can change all of them.

Your battery

Volts × amp-hours Watt-hours (Wh)

Voltage (V) example value — change to yours

Capacity (Ah) example value — change to yours

Watt-hours = volts × amp-hours. Check your battery’s label or spec sheet.

Your ride

Rider + cargo weight (kg) example value — change to yours

Temperature (°C) example value — change to yours

Assist level example value — change to yours

Terrain example value — change to yours

Estimated range

43–58 km

Middle of the estimate: 50 km. An estimate from the assumptions below, not a measured range.

Battery energy: 672 Wh
Usable energy (after usable share and cold): 605 Wh
Energy use: 12.0 Wh/km
Factors used (weight × terrain, cold capacity): ×1.00 × 1.00, 100%

Our assumptions (change any of them)

We haven’t cited a study for these numbers. They are our working assumptions for a typical e-bike, so the estimate is only as good as they are: if you know your own bike’s numbers, use them.

Energy use per km our assumption — adjust it

For a 80 kg rider + cargo on flat ground at 20 °C or warmer.

Eco / low assist (Wh/km)

Medium assist (Wh/km)

High / turbo assist (Wh/km)

Throttle only (no pedalling) (Wh/km)

Weight our assumption — adjust it

Extra energy per 10 kg over 80 kg (%) Below 80 kg the same share is taken off.

Terrain our assumption — adjust it

Energy use is multiplied by this factor.

Flat (×)

Rolling hills (×)

Hilly (×)

Steep / mountain (×)

Battery our assumption — adjust it

Usable share of the battery (%) How much of the rated capacity you expect to use on a ride.

Spread of the estimate (± %)

Cold weather our assumption — adjust it

Share of the battery’s capacity available at each temperature. Between these points the calculator draws a straight line.

At -20 °C (%)

At -10 °C (%)

At 0 °C (%)

At 10 °C (%)

At 20 °C (%)

How the estimate is worked out

Battery energy = volts × amp-hours (or the Wh you enter).
Usable energy = battery energy × usable share × cold-weather capacity.
Energy use per km = the figure for your assist level × the weight factor × the terrain factor.
Range = usable energy ÷ energy use per km, shown as a band of ± the spread you set.

With the example values above: 672 Wh × 90% × 100% = 605 Wh usable, at 12.0 Wh/km, gives about 50 km, so 43–58 km.

This calculator leaves out wind, tire pressure, stops and starts, riding speed and the bike itself, so treat the result as a rough guide.

Before you ride: the rules where you live

Check the motor power and speed rules for your province or territory:

More e-bike tools

Is my e-bike legal?

Enter your e-bike’s watts, speed, pedals, throttle and weight. See each rule for your province: within the limit, over it, or not stated in the law.
E-bike vs car cost calculator

Compare a year of e-bike charging with fuel for a car and a monthly transit pass, using your own distances and prices.

Published by Zeus Ebikes

ebikelaws.ca is a free guide from Zeus Ebikes, a Canadian online e-bike retailer. Whatever e-bike you choose, compare its motor power and speed with your province’s rules before you ride on public roads.

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