EV Range Calculator

Enter the EPA rated range and pick your conditions: temperature, speed, battery age, load. You get an honest real-world estimate as a band rather than a point, a planning range with a 10 percent floor, and the same car across every season in one table.

EPA rated range (miles) (the window sticker or spec-page combined figure; the longest-range EV sold today rates about 520)

Temperature

How you are driving

Heat pump? (most EVs built since about 2021 have one; the spec sheet says. It only matters in the cold.)

No heat pump Heat pump

Roof box, rack, or heavy load? (a box on the roof at highway speed is a sail)

No Yes

Battery age

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How the EV range calculator works

The number on the window sticker is neither a lie nor a promise. It is a controlled measurement: a blended lab cycle, mostly moderate speeds, mild temperatures, no roof box, no headwind, no schedule. Your Tuesday is none of those things, and the gap between the lab and your Tuesday is exactly what this page calculates. You enter the EPA combined range and pick your conditions, and we apply range multipliers calibrated to the biggest published fleet studies: Recurrent's winter data across more than 18,000 real-world EVs (the same figure our EV savings page quotes, so the two can never disagree), AAA's climate-chamber tests, Geotab's battery degradation telemetry, and instrumented 70 and 75 mph range tests.

Two honesty rules shape the output. First, the answer is a band, not a point, because cars vary around every fleet average; we put 5 percent either side and tell you the real spread is wider at the extremes. Second, the result includes a planning range with a 10 percent floor held in reserve, because nobody drives to zero on purpose, and a range figure you cannot actually use is not a range figure. The floor is a planning convention, not physics, and the page says so.

The formula

estimate = EPA range × age × temperature × speed × load
band = estimate × 0.95 to estimate × 1.05
planning range = estimate × 0.90

Age compounds the Geotab fleet average of 1.8 percent capacity loss per year. Temperature applies the tier you pick, softened in the cold tiers if the car has a heat pump. Speed is calibrated to instrumented highway tests against the EPA combined figure. Load is a disclosed editorial 10 percent for a roof box or heavy cargo. Every multiplier is shown in the steps with your numbers, so you can argue with any of them.

Worked example

A 300 mile EPA car, about 3 years old, at freezing temperatures without a heat pump, holding a steady 70 mph.

Age: three years at 1.8 percent a year keeps ×0.947 of the pack, so 300 becomes 284 miles. Freezing without a heat pump is ×0.75: 213 miles. A steady 70 mph is ×0.90: 192 miles. With the 5 percent car-to-car band, the honest estimate is 182 to 201 miles, and with the 10 percent floor in reserve the day gets built around 173.

Where did the sticker go? The cold took about 71 miles, speed another 21, and battery age 16. Run the same car across the year and the story completes itself: about 166 miles in deep cold, 256 in mild weather at the same 70 mph, 230 in a 95 F heat wave. The car did not get worse between July and January; the heater got hungry, and it gives the miles back in spring.

Winter: it is the heater, not the battery

The single biggest range factor is cold, and the mechanism matters, because it changes what you do about it. Fleet-wide, EVs lose about 20 percent of their range at freezing temperatures (Recurrent's study of more than 18,000 vehicles), and only a small slice of that is battery chemistry slowing down. Most of it is the cabin heater: a gas car heats you with engine waste heat it makes anyway, while an EV pays for every degree out of the pack. That is why the fix list is all about heat management. A heat pump moves heat instead of generating it and is worth roughly 10 points of range at freezing (Recurrent measured about 83 percent retention with one against 75 without), though its edge fades toward 0 F, where it works nearly as hard as a plain resistive heater. Preconditioning, warming the cabin and pack while still plugged in, buys the first warm miles on wall power instead of battery. And the pro move is embarrassingly cheap: seat and wheel heaters warm the human for tens of watts while cabin heat costs kilowatts, so dress the seat, not the air.

Deep cold is its own tier for a reason. By 20 F real-world data already shows about 30 percent of range gone, and AAA's climate-chamber tests, with the heater working hardest on short trips, measured 39 to 41 percent at that temperature. Around 0 F we model 35 percent off, and the honest caveat is that individual cars spread widely down there: the best winter cars hold most of their range and the worst give up well over a third.

The speed tax and the age tax

Aerodynamic drag grows with the square of speed, so the miles between 70 and 80 mph are the most expensive miles a car body can buy. The EPA's blended cycle averages well below American interstate reality, which is why instrumented tests at a steady 75 mph find the average EV running about 12.5 percent short of its sticker, and why our 75 to 80 tier takes a fifth off. The same physics runs in reverse at low speed: around town, regenerative braking hands energy back at every stop, and gentle drivers routinely beat the sticker, which is why the city tier on this page is the only multiplier above 1.

Age is the tax people fear most and pay least. Geotab's fleet telemetry across thousands of vehicles puts average capacity loss at about 1.8 percent a year (newer data runs closer to 2.3 as fast charging grows), typically steeper in the first year or two and flatter after. Compounded for a decade that still leaves most of the pack, which is why manufacturer warranties promise roughly 70 percent capacity at 8 years, and why our EV savings page reaches the same verdict from the same data: most modern packs outlast the loan, and usually the vehicle.

The buffer doctrine, and why range anxiety fades

Nobody plans to coast in at 0 percent, so this page refuses to hand you a number that assumes you will. The planning range keeps a 10 percent floor in reserve, and on road trips the top of the battery is rationed too: DC charging slows sharply past 80 percent, so experienced road-trippers run roughly 10 to 80 and drive on, exactly the taper arithmetic our EV charging time calculator walks through. Between the floor and the taper, your practical road-trip window is about 70 percent of whatever this page says, which sounds grim until you feed it to our EV road trip calculator and discover it mostly means one more coffee than the gas car.

Here is the part that only shows up after a few months of ownership: the number stops mattering. The average American driving day is about 33 miles, and even our worked example's deep-cold worst case covers that five times over before touching the floor. A car that sleeps at home wakes up full every morning, which is a fueling schedule no gas car ever offered; the overnight arithmetic on our EV savings page is why owners describe range anxiety as a symptom of shopping, not of owning. One last calibration note, because honesty is the house style: every multiplier here is a fleet-wide figure, and your specific car sits somewhere in the spread. The owner forums for your model know whether it runs hot or cold against its sticker; this page tells you what the fleet does, and the steps show every number we used so you can swap in better ones.

Sources

Where the numbers on this page come from. We go to the body that publishes the figure, not to another calculator. See how we verify.

Winter EV range loss study, Recurrent. The freezing-tier anchor: across more than 18,000 real-world EVs, average range loss at freezing temperatures is around 20 percent, splitting to roughly 83 percent retention with a heat pump versus 75 without (about 10 points of range at 32 F), with the heat pump benefit diminishing toward 0 F. Identical by design to the winter figure on our EV savings page, and a test enforces the match.
Here's How Much Range These Popular EVs Lose In The Cold, InsideEVs. Corroborates the Recurrent data and shows the car-to-car spread behind our honesty band: at freezing, the best models lose about 11 percent of range while the worst give up well over a third.
Cold Weather Reduces Electric Vehicle Range, AAA. The climate-chamber bound on the deep-cold tier: at 20 F with the HVAC heating the cabin, average driving range fell 41 percent; at 95 F with air conditioning, 17 percent. Dyno testing with the heater working hardest, which is why it reads worse than the real-world fleet data.
AAA Study Reveals Temperature Impacts on EV and Hybrid Efficiencies and Costs, AAA. AAA's follow-up chassis-dynamometer study: at 20 F, EV driving range fell 39 percent; at 95 F with air conditioning, 8.5 percent. Corroborates both directions of the temperature model within the bands this page states.
Study: How Hot Summer Weather Affects EV Range, Recurrent. The hot-tier field data: range dips only about 5 percent at 90 F and reaches roughly 17 to 18 percent at 100 F across tens of thousands of vehicles. With AAA's 8.5 to 17 percent lab figures at 95 F, the published hot-weather band is 5 to 18 percent; we use 10.
What's The Real World Highway Range Of Today's Electric Cars? We Test To Find Out, InsideEVs. The instrumented 70 mph range-test program behind the steady-70 tier: results cluster near the EPA highway figure (itself below the combined figure), with efficient models beating it and heavier, blunter ones missing it, the straddle our 10 percent tier is calibrated to.
Reminder: EPA range for EVs isn't a highway number, Green Car Reports. The steady 75 to 80 tier's anchor: in Car and Driver's steady 75 mph testing, the average EV ran 12.5 percent short of its EPA rating (while gas cars beat theirs), and drag rising with the square of speed grows the gap toward 80 mph.
EV Battery Health: Key Findings from Vehicle Data Analysis, Geotab. The battery-age tiers: fleet telematics on thousands of EVs measured average capacity loss of about 1.8 percent per year in the 2024 study, with newer data running closer to 2.3 percent. The same figures our EV savings page quotes, and a test enforces the match.

Frequently asked questions

How much range do EVs lose in winter?

Around 20 percent at freezing temperatures on average, per Recurrent's analysis of more than 18,000 real-world EVs, with a wide spread by model: the best lose about 11 percent and the worst well over a third. By 20 F the average loss reaches about 30 percent, and climate-chamber tests with the heater working hardest measure 39 to 41 percent. Most of the loss is the cabin heater, not the battery, which is why it comes back in spring.

Why is my EV range less than advertised?

Because the EPA figure is a blended lab cycle at mild temperatures and moderate speeds, and real driving usually is not. Cold weather, sustained highway speed, battery age, and cargo each take a slice, and they multiply: our worked example turns a 300 mile sticker into an honest 182 to 201 at freezing and 70 mph. The sticker is not a lie; it is a controlled measurement of conditions you rarely drive in.

Do heat pumps help EV range?

Yes, meaningfully, in the cold. Recurrent's fleet data shows about 83 percent range retention at freezing for heat-pump cars versus 75 percent without one, roughly 10 points of range, because a heat pump moves heat instead of generating it. The advantage fades in deep cold: below about 15 F a heat pump works nearly as hard as a plain resistive heater. It makes no difference in hot weather, since air conditioning is the same job either way.

How much does driving speed affect EV range?

A lot, because aerodynamic drag grows with the square of speed. In Car and Driver's steady 75 mph testing the average EV ran 12.5 percent short of its EPA rating, and 80 mph costs more still, which is why this page takes 10 percent off at a steady 70 and 20 percent at 75 to 80. The physics also runs in reverse: gentle city driving with regenerative braking routinely beats the sticker.

How much range does an EV battery lose per year?

About 1.8 percent of capacity a year on the fleet average, per Geotab's telematics across thousands of vehicles, with newer data closer to 2.3 percent as fast charging grows. The loss is typically steeper in the first year or two and flatter after. Compounded for a decade that still leaves most of the pack, which is why warranties commonly promise 70 percent at 8 years and why most packs outlast the loan.

What is a planning range, and why hold 10 percent back?

The planning range is the honest estimate with a 10 percent floor kept in reserve, because nobody drives to zero on purpose and a mile you cannot use is not really range. The floor is a planning convention, not physics. On road trips the top gets rationed too: DC charging slows sharply past 80 percent, so the practical between-stops window is roughly 10 to 80, about 70 percent of the adjusted range.

Does hot weather reduce EV range?

Yes, but less than cold. Recurrent's fleet data shows only about 5 percent loss at 90 F, climbing to 17 to 18 percent at 100 F, and AAA's lab tests at 95 F with the AC on measured 8.5 to 17 percent depending on the study. This page uses 10 percent for the 95-and-up tier. Cooling a cabin is simply cheaper than heating one, and a heat pump does not change the AC's bill.

Is the EPA range estimate accurate?

It is accurate at what it measures: a standardized blended cycle that lets you compare any two EVs fairly. It is not a prediction of your commute, and it was never supposed to be. Treat it as the starting point, apply your temperature, speed, and battery age the way this page does, and keep a reserve. The gap between sticker and street is arithmetic, not scandal.