Free Ebike Range Calculator

Q: How far can an ebike go on one charge?

A typical 500Wh ebike goes 25–60 miles (40–100 km) depending on assist level: eco mode stretches toward 60+, turbo can drop under 25. Use the calculator above with your real assist level, weight, and terrain for a number that matches your riding — the brochure number assumes eco, flat ground, and a light rider.

Q: What affects ebike range the most?

In order: assist level (turbo uses ~4x the energy of eco), rider + cargo weight , hills , temperature (cold cuts usable capacity 15–30%), then tire pressure, headwind, and stop-and-go traffic. Battery size matters, but how you spend the watt-hours matters more.

Q: How many miles is a 500Wh battery?

Roughly 25–60 miles : ~60 in eco on flat ground, ~30–40 in tour/normal mixed riding, ~20–25 in turbo or hills. 500Wh is the most common mid-drive battery size, which is why it's the calculator's default — adjust to your actual pack.

Last updated: October 12, 2026

Quick answer: Manufacturer range claims are measured on a flat test track with a light rider in eco mode — your commute is none of those things. This free ebike range calculator estimates real-world range from the numbers that actually matter: your battery capacity (Wh), the assist level you ride in, rider + cargo weight, terrain, and temperature (cold saps lithium batteries). You get an honest range in miles and kilometers, the usable battery after weather derating, and your consumption in Wh per km — plus a verdict on whether the bike covers your commute with margin to spare. Everything runs in your browser: no signup, no tracking.

Battery capacity (Wh)

Assist level you usually ride

Rider + cargo weight (lbs)

Terrain

Typical riding temperature

Estimates only. Real range varies with tire pressure, headwind, stop-and-go traffic, and battery age — treat this as a planning number, not a guarantee. Never ride a battery to absolute zero; keep ~10% in reserve.

✓ Free forever · ✓ No signup · ✓ Tool inputs stay in your browser — never sent to our servers.

How to Use the Ebike Range Estimator

Enter your battery capacity in watt-hours (Wh) — it's printed on the battery or in the bike's specs (a 48V 10.4Ah pack is ~500Wh).
Pick the assist level you actually ride in, not the eco mode from the brochure.
Add your weight plus cargo in pounds — backpack, groceries, and lock all count.
Choose your terrain and typical temperature; cold weather meaningfully shrinks usable capacity.
Read your real-world range in miles and km, and check the verdict against your round-trip commute.

Why Use Our Ebike Range Estimator?

Assist-level consumption model — eco sips ~6 Wh/km, turbo drinks ~22 Wh/km: the single biggest lever on range, modeled explicitly.
Weight-adjusted — rider + cargo weight scales consumption, so a 250 lb rider with groceries gets an honest number, not the 150 lb test-rider fantasy.
Terrain multipliers — flat, rolling, or hilly: hills cost real watt-hours and this calculator charges you for them.
Cold-weather derating — lithium batteries lose 15–30% of usable capacity in the cold; the estimate reflects it.
Miles AND kilometers — both units side by side, whichever your brain uses.
Commute verdict — tells you plainly whether your round trip fits with a safety margin, or whether you should charge at work.

Common Use Cases

The commute test: Enter your round-trip commute distance: the verdict tells you whether the bike makes it home with margin, or whether you need to charge at the office.
Buying decision: Compare two bikes you're choosing between — a 400Wh commuter vs. a 625Wh long-range — with your weight and hills, not the brochure's.
Route planning: Planning a 45-mile weekend loop? Check the range in tour mode first and decide where the charging stop goes before you're stranded.
Battery upgrade math: See exactly how many extra miles a 250Wh range extender buys you on your actual route — then decide if it's worth the money and weight.
Delivery and cargo riders: Heavy loads and constant stop-and-go are the worst case for range. Cargo and delivery riders get the honest worst-case number before accepting a route.

Ebike Range Estimator vs Alternatives

The manufacturer's range claim: Measured in eco mode, on flat ground, with a light rider and a new battery — the absolute best case. Useful for comparing two bikes' battery sizes, useless for planning your Tuesday commute. This calculator models your actual riding.
Ebike forum anecdotes: 'I get 40 miles on my Rad' is real data from one rider on one route — worth reading, but it isn't your route. Use forums to sanity-check the calculator's number, not replace it.
Other online range calculators: Most ask for battery Wh and stop there, or bury the assist/weight inputs. The assist-level consumption model plus cold-weather derating is this page's edge.
Doing the Wh/km math by hand: Range = Wh ÷ Wh-per-km works — if you know your real consumption, which almost nobody does. The calculator supplies the consumption model so you don't have to guess.

If you're comparing two bikes side by side, the manufacturer's claims are fine — same fantasy, both bikes. For planning your actual commute, your actual route, in your actual weather, run the numbers here instead. And when in doubt, keep 10% battery in reserve: walking a 60 lb ebike home is a workout nobody ordered.

Frequently Asked Questions

How far can an ebike go on one charge?

A typical 500Wh ebike goes 25–60 miles (40–100 km) depending on assist level: eco mode stretches toward 60+, turbo can drop under 25. Use the calculator above with your real assist level, weight, and terrain for a number that matches your riding — the brochure number assumes eco, flat ground, and a light rider.

What affects ebike range the most?

In order: assist level (turbo uses ~4x the energy of eco), rider + cargo weight, hills, temperature (cold cuts usable capacity 15–30%), then tire pressure, headwind, and stop-and-go traffic. Battery size matters, but how you spend the watt-hours matters more.

How do you calculate ebike range?

Range = usable battery (Wh) ÷ consumption (Wh per km or mile). Example: a 500Wh battery at 10 Wh/km in tour mode → ~50 km (~31 miles). This calculator refines it: consumption starts from your assist level, then scales with weight and terrain, and usable battery shrinks in cold weather.

Does cold weather really reduce ebike range?

Yes — lithium-ion chemistry slows in the cold, cutting usable capacity roughly 15% in cool weather (32–50°F) and up to 30% below freezing. Store and charge the battery indoors, and if you must ride in winter, expect noticeably less range — the calculator's temperature setting accounts for it.

How many miles is a 500Wh battery?

Roughly 25–60 miles: ~60 in eco on flat ground, ~30–40 in tour/normal mixed riding, ~20–25 in turbo or hills. 500Wh is the most common mid-drive battery size, which is why it's the calculator's default — adjust to your actual pack.

How can I extend my ebike's range?

Ride one assist level lower than usual, keep tires at max rated pressure, pedal more on starts and hills (acceleration is the hungriest phase), carry less weight, store/charge the battery at room temperature, and use eco on flats saving turbo for climbs. Together these can add 20–40% versus careless riding.