Electric Vehicle Range Calculator

Enter the battery voltage and capacity, motor power, weight and speed. The calculator takes rolling resistance, air drag, motor and controller losses, battery type and temperature into account and gives an approximate range and riding time.

Result

Range	km
Riding time	( km/h)
At continuous full power it runs for	min
Energy consumption	Wh/km
Usable / nominal energy	/ Wh
Battery current while riding	A
Top speed on level ground	km/h

Where the energy goes (while riding)
Power drawn from the battery	W
Controller losses	W
Motor losses	W
Drivetrain (chain) losses	W
Rolling resistance	W
Air drag	W

Results are calculated estimates. Always check your vehicle manufacturer's instructions.

What affects the range of an electric vehicle?

Battery energy (Wh)

Battery energy = voltage × capacity. A 72 V 20 Ah battery holds 1440 Wh. What matters for range is energy (Wh), not just Ah – a 48 V 20 Ah battery holds only two thirds of the energy of a 72 V 20 Ah battery.

Motor and controller losses

A good hub motor converts roughly 80–88% of the electrical energy into motion, the controller loses 3–7% and the chain a further ~5%. A brushed DC motor is 70–80% efficient. Losses are higher at low speed and under heavy load (hills, acceleration).

Air drag and rolling resistance

Rolling resistance depends on weight and tyres, and on an ATV or off-road it is several times higher than on tarmac. Air drag grows with the square of speed – at 60 km/h you use about twice as much energy to cover the same distance as at 40 km/h.

Cold

In the cold a battery delivers less energy: about 10–20% less at 0 °C and 25–35% less at −10 °C. A lead-acid battery suffers more in the cold than a lithium one.

Battery type	Usable share of capacity	Effect of high current	Weight	Lifespan (cycles)
AGM / lead-acid	~50–80%	large (Peukert effect)	heavy	300–500
Lithium (NMC)	~90%	small	light	500–1000
LiFePO4	~90–95%	very small	light	2000+

The result is a calculated estimate for a level road and average wind. Real-world range can differ by ±30% depending on the road, weather, battery condition and riding style.

Matching products: Batteries Battery chargers

How to use

Choose the vehicle type – it sets typical air drag, rolling resistance, weight and speed. You can change the weight and speed.
Enter the battery details: type, voltage (V) and capacity (Ah). You will find them on the battery label or in the vehicle specifications.
Enter the motor power (W) and choose a riding style. In winter, select the temperature – a cold battery delivers less energy.

Frequently asked questions

Why does a lithium battery go further with the same Ah?

An AGM (lead-acid) battery can safely deliver less of its energy, and its capacity drops noticeably at high currents (the Peukert effect). A lithium battery delivers almost its full capacity even under heavy load, and it is lighter too.

How accurate is the result?

It is an estimate. The real range depends on the road, wind, hills, tyre pressure, battery age and riding style, and can differ by ±30%.

How can I extend the range?

Ride at a steady, moderate speed, keep your tyres correctly inflated and avoid hard acceleration. Speed has the biggest effect, because air drag grows with the square of speed.

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