liminfoEV Range Calculator
Free web tool: EV Range Calculator
Base Range
263 mi
Adjusted Range
263 mi
Range by Speed
30 mph
289 mi
45 mph
289 mi
60 mph
263 mi
70 mph
223 mi
80 mph
184 mi
About EV Range Calculator
The EV Range Calculator estimates how far your electric vehicle can travel on a single charge by factoring in battery capacity, real-world efficiency, ambient temperature, and driving style. Enter your battery size in kWh, your vehicle's rated efficiency in miles per kWh, the current temperature in Fahrenheit, and choose a driving style (Eco, Normal, or Sport) to get an adjusted range estimate that reflects real-world conditions.
The calculator applies two correction factors to the base range (battery kWh × mi/kWh). The temperature factor accounts for the significant impact of cold weather on lithium-ion battery performance: below 32°F the range is reduced to 70% of the base, between 32°F and 50°F to 85%, between 50°F and 95°F no adjustment is made, and above 95°F a 8% reduction applies for heat-related efficiency loss. The driving style factor adjusts for throttle behavior: Eco mode adds 10% to reflect gentle acceleration and regenerative braking, Normal uses no adjustment, and Sport mode reduces range by 20% due to aggressive acceleration.
In addition to the adjusted total range, the tool displays a speed breakdown showing estimated range at five driving speeds: 30, 45, 60, 70, and 80 mph. Lower speeds (30–45 mph) receive a 10% bonus over the adjusted range because aerodynamic drag is minimal, while highway speeds (70–80 mph) reduce range by 15% to 30% due to rapidly increasing aerodynamic drag. All calculations run client-side in your browser.
Key Features
- Computes adjusted EV range from battery capacity (kWh) and efficiency (mi/kWh)
- Temperature correction factor: 70% below 32°F, 85% at 32–50°F, 92% above 95°F
- Driving style multiplier: Eco +10%, Normal 0%, Sport −20%
- Speed breakdown table showing estimated range at 30, 45, 60, 70, and 80 mph
- Displays both base range (no corrections) and adjusted range side by side
- Works for any EV — just enter your vehicle's battery size and efficiency rating
- 100% client-side — no data is ever sent to a server
- No sign-up, no download, and completely free to use
Frequently Asked Questions
How does temperature affect EV range?
Lithium-ion batteries lose capacity in cold weather because chemical reactions slow down and the battery management system uses energy to maintain safe cell temperatures. Below 32°F (0°C), this calculator applies a 30% range reduction. Between 32°F and 50°F a 15% reduction is applied. Above 95°F (35°C) a mild 8% reduction is applied for heat-related losses. Between 50°F and 95°F no temperature penalty is applied.
What does efficiency (mi/kWh) mean?
Miles per kWh (mi/kWh) is the distance your EV travels on one kilowatt-hour of energy. A typical mid-range EV achieves around 3–4 mi/kWh. Higher efficiency means more miles from the same battery. You can find your vehicle's rated efficiency in the owner's manual or on the EPA sticker (for US vehicles).
How does driving style affect range?
Aggressive acceleration and high speeds consume significantly more energy per mile. The Sport setting reduces estimated range by 20% compared to the Normal baseline. Eco driving, which involves gentle acceleration and maximizing regenerative braking, adds a 10% range bonus.
Why does range decrease at higher highway speeds?
Aerodynamic drag increases with the square of vehicle speed. At 70–80 mph the drag force is much higher than at 45 mph, requiring substantially more energy per mile. The calculator applies a 15% reduction at 70 mph and a 30% reduction at 80 mph compared to the adjusted range baseline.
Should I enter the total battery capacity or usable capacity?
For the most accurate estimate, enter the usable battery capacity (not the total gross capacity). EV manufacturers typically keep 5–10% of the total battery inaccessible to protect longevity, so the usable kWh figure is what actually powers the motor. Usable capacity is usually listed in technical specifications or third-party EV databases.
What is base range vs. adjusted range?
Base range is the theoretical maximum: battery kWh × efficiency mi/kWh with no corrections. Adjusted range applies the temperature and driving style correction factors. In real-world use, the adjusted range is a more realistic estimate of how far you will travel before needing to charge.
Can I use this for any electric vehicle?
Yes. The calculator is vehicle-agnostic. Simply enter your EV's battery capacity and efficiency rating. Common examples: Tesla Model 3 Long Range (82 kWh, ~4 mi/kWh), Chevy Bolt (65 kWh, ~3.5 mi/kWh), Nissan Leaf (40 kWh, ~3.1 mi/kWh), Rivian R1T (135 kWh, ~2.5 mi/kWh).
Why does range at 30 mph exceed the adjusted range?
At very low speeds aerodynamic drag is negligible, so the energy cost per mile is dominated by rolling resistance and motor efficiency, both of which are more favorable than at high speeds. The 10% bonus at 30–45 mph reflects this real-world phenomenon, which EV drivers exploit when driving in city traffic.