How do I calculate e-bike range?

Divide your battery capacity in watt-hours (Wh) by your average consumption in Wh per mile. A 500Wh battery at 20 Wh/mile gives 25 miles of range.

How many Wh does an e-bike use per mile?

Most e-bikes use 15–25 Wh per mile depending on assist level, terrain, and rider weight. Eco mode uses ~12 Wh/mi while turbo mode can use 40–50 Wh/mi.

How do I find my battery Wh?

Multiply voltage × amp-hours. A 48V 10.4Ah battery = 499Wh. This information is usually printed on the battery label.

Does cold weather affect e-bike range?

Yes significantly. Cold weather (below 32°F) can reduce range by 20–30% because lithium batteries lose capacity in cold temperatures. Always store your battery indoors in winter.

How much does it cost to charge an e-bike?

A 500Wh battery charged from 0–100% costs about $0.065 at the US average of $0.13/kWh. Full-year charging typically costs $10–$20 for most commuters.

Electric Bike Range Calculator

Calculate your e-bike range in miles and km from battery capacity (Wh), assist level, terrain, and pedaling effort. Compare cost per mile vs driving.

Battery Capacity (Wh) ?

Avg Consumption (Wh/mi) ?

Wh/mi

Estimated Range (miles)

—

Estimated Range (km) —

Conservative Range (80% battery) —

Extended More scenarios, charts & detailed breakdown ▾

Battery (Wh)

Assist Level

Estimated Range

—

Range (km) —

Professional Full parameters & maximum detail ▾

Battery Voltage (V) ?

Battery Capacity (Ah)

Motor Wattage

Rider Weight (lbs)

lbs

Temperature (°F) ?

°F

Electricity Cost ($/kWh)

Car MPG (for comparison)

mpg

Gas Price ($/gal)

Battery & Range

Calculated Battery (Wh) —

Adjusted Range —

Adjustments

Weight Adjustment —

Temperature Range Reduction —

Cost Comparison

Full Charge Cost —

Cost per Mile (e-bike) —

Cost per Mile (car) —

Savings per Mile vs Car —

How to Use This Calculator

Enter your battery capacity in Wh (volts × amp-hours, e.g. 48V × 10.4Ah = 500Wh).
Enter your average consumption in Wh/mile (check your e-bike display or use 20 as a starting point).
See estimated range in miles and km, plus a conservative 80% estimate.
Use the Hilly tab to account for elevation gain.
Use the With Pedaling tab to see how pedaling effort extends range.

Formula

Range (miles) = Battery (Wh) ÷ Consumption (Wh/mi)

Battery Wh = Voltage (V) × Capacity (Ah)

Cost per mile = Charge cost ÷ Range

Example

Example: 48V × 10.4Ah = 499Wh battery, 20 Wh/mi consumption → 25 miles range. At $0.13/kWh electricity, charge cost = $0.065. Cost per mile = $0.003 vs ~$0.12/mi for a 30 mpg car.

Frequently Asked Questions

Divide your battery capacity in watt-hours (Wh) by your average consumption in Wh per mile. A 500Wh battery at 20 Wh/mile gives 25 miles of range.
Most e-bikes use 15–25 Wh per mile depending on assist level, terrain, and rider weight. Eco mode uses ~12 Wh/mi while turbo mode can use 40–50 Wh/mi.
Multiply voltage × amp-hours. A 48V 10.4Ah battery = 499Wh. This information is usually printed on the battery label.
Yes significantly. Cold weather (below 32°F) can reduce range by 20–30% because lithium batteries lose capacity in cold temperatures. Always store your battery indoors in winter.
A 500Wh battery charged from 0–100% costs about $0.065 at the US average of $0.13/kWh. Full-year charging typically costs $10–$20 for most commuters.