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🕒 last updated on 28.11.2025
Calculated EV Mileage
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Understand exactly how efficient your EV is and how much it costs to run. The V3Cars EV Mileage Calculator is designed for EV owners who want to track real-world range and charging costs — not just rely on manufacturer-claimed figures. Enter the distance you drove, the energy your EV consumed (in kWh), and your electricity tariff to instantly get your EV's efficiency in km/kWh and kWh/100km, plus your charging cost per kilometre. Whether you drive a Tata Nexon EV, Mahindra BE 6, MG Windsor or any other electric vehicle, this tool gives you the numbers that matter. Check Your EV's Real-World Efficiency & Running Cost With V3Cars EV Mileage Calculator.
EV mileage is the measure of how efficiently an electric vehicle uses the energy stored in its battery, expressed in kilometres per kilowatt-hour (km/kWh). The higher the km/kWh figure, the more distance your EV travels on each unit of electrical energy — and the lower your running cost per kilometre.
Unlike petrol or diesel vehicles where mileage is measured in km per litre (kmpl), EVs measure efficiency in km/kWh because electricity is sold in kilowatt-hours (kWh) rather than litres. Some regions and tools also express EV efficiency in kWh per 100 km — the amount of energy needed to travel 100 kilometres. A lower kWh/100km figure means a more efficient EV.
Real-world EV mileage almost always differs from the manufacturer's claimed range, just as petrol car mileage differs from ARAI-certified figures. Factors like driving speed, air conditioning usage, battery age, terrain and ambient temperature all affect how far your EV actually goes on a full charge.
The calculator gives you four results for every input:
EV Mileage (km/kWh): How many kilometres your EV travels per kilowatt-hour of energy consumed. This is the primary efficiency metric for electric vehicles — the EV equivalent of kmpl for petrol cars.
Energy Consumption (kWh/100km): How many kilowatt-hours your EV consumes per 100 kilometres driven. Lower is better — this metric is commonly used for international EV comparisons and range planning.
Charging Cost Per Kilometre (₹/km): What each kilometre costs you in electricity charges at your entered tariff rate. This is the most useful metric for comparing EV running costs against petrol, diesel or CNG alternatives.
Charging Cost Per 100 km (₹/100km): The total electricity cost for every 100 kilometres driven — useful for estimating monthly running costs based on your typical driving distance.
The calculator uses four straightforward formulas:
EV Mileage (km/kWh): EV Mileage = Distance Travelled (km) ÷ Energy Consumed (kWh)
Energy Consumption (kWh/100km): Energy Consumption = (Energy Consumed ÷ Distance Travelled) × 100
Charging Cost Per km (₹/km): Cost Per km = Electricity Tariff (₹/kWh) × Energy Consumed (kWh) ÷ Distance (km)
Charging Cost Per 100km (₹/100km): Cost Per 100km = Electricity Tariff (₹/kWh) × kWh/100km
Example — Tata Nexon EV (Real World): Distance: 250 km | Energy consumed: 43 kWh | Electricity tariff: ₹8/kWh EV Mileage = 250 ÷ 43 = 5.81 km/kWh Energy Consumption = (43 ÷ 250) × 100 = 17.2 kWh/100km Cost Per km = (8 × 43) ÷ 250 = ₹1.38/km Cost Per 100km = 8 × 17.2 = ₹137.60
Example — MG Windsor EV (Real World): Distance: 320 km | Energy consumed: 52 kWh | Electricity tariff: ₹7.50/kWh EV Mileage = 320 ÷ 52 = 6.15 km/kWh Energy Consumption = (52 ÷ 320) × 100 = 16.25 kWh/100km Cost Per km = (7.50 × 52) ÷ 320 = ₹1.22/km Cost Per 100km = 7.50 × 16.25 = ₹121.88
Step 1 — Select Vehicle & Fuel Type Select your vehicle type (car, bike or other). Electric is pre-selected as the fuel type on this page. The calculator is designed for all battery electric vehicles — cars, e-bikes, e-scooters and commercial EVs.
Step 2 — Enter Distance Travelled Enter the distance driven in kilometres. If you prefer miles — for international EV models or global comparisons — switch to miles using the unit toggle. Energy consumption remains in kWh regardless of the distance unit selected.
Step 3 — Enter Energy Consumed Enter the total energy consumed during the drive in kWh. The most accurate way to get this figure is from your EV's onboard trip computer or the charging session data from your home charger or public charging app. Many EVs display kWh consumed per trip directly on the instrument cluster or companion app.
Step 4 — Enter Your Electricity Tariff A default electricity tariff rate is pre-filled. Edit this to match your actual home electricity rate per unit (₹/kWh). Residential electricity tariffs in India typically range from ₹4 to ₹10 per kWh depending on your state, consumption slab and whether you have a dedicated EV charging connection. If you charge primarily at public stations, enter the per-kWh rate charged by the station.
Step 5 — Calculate Hit Calculate EV Mileage. Your EV efficiency in km/kWh and kWh/100km, along with charging cost per km and per 100km, appear instantly.
Accurately measuring your EV's real-world efficiency requires knowing how much energy it actually used — not the battery capacity. Here are the best ways to get this data:
From your EV's trip computer: Most modern EVs display kWh consumed per trip on the instrument cluster or infotainment screen. Tata Nexon EV, Mahindra XEV 9e, MG Windsor EV and Hyundai Creta Electric all display this in the trip statistics menu. Reset your trip data at the start of your drive and note the kWh figure at the end.
From your home charger: Smart home EV chargers (like those from Tata Power EZ Charge, Ather, or Ola) record energy dispensed per session in kWh. The energy delivered to the car during a full charge equals the energy consumed during the previous drive — accounting for minor charging losses.
From your charging app: Most public charging networks (TATA.ev, ChargeZone, Statiq, Jio-bp) display total kWh delivered per charging session in their app. This gives you the most accurate consumed energy figure.
Several factors cause your EV's actual range and efficiency to differ from the manufacturer's claimed figure:
Driving speed: EV efficiency drops sharply at higher speeds due to aerodynamic drag. Most EVs achieve peak efficiency at 40–70 kmph. Motorway driving at 100–120 kmph can reduce real-world range by 25–35% compared to city driving — the opposite of petrol cars.
Air conditioning and heating: Running the AC or cabin heater draws directly from the battery. In Indian summers, AC usage can reduce EV range by 15–25% depending on ambient temperature and cabin size.
Battery temperature: Lithium-ion batteries perform best at 20–35°C. In extreme heat (above 40°C) or cold, battery efficiency and usable capacity can reduce noticeably. This is less of a concern in most Indian cities but relevant in Ladakh or high-altitude regions.
Battery age and health: Battery capacity degrades gradually over time and charge cycles. An EV with 80,000 km on the odometer may have 5–10% less usable battery capacity than when new, reducing real-world range proportionally.
Regenerative braking: Aggressive regenerative braking settings recover more energy during deceleration and extend real-world range — particularly effective in stop-and-go city traffic. Using the highest regen setting in urban driving can meaningfully improve km/kWh figures.
Tyre pressure and rolling resistance: Under-inflated tyres increase rolling resistance and reduce EV efficiency. EV manufacturers typically recommend slightly higher tyre pressures than equivalent petrol cars to maximise range.
Vehicle load: Additional passengers and luggage increase the energy needed to accelerate and maintain speed. A fully loaded EV will show lower km/kWh than the same vehicle with one occupant.
One of the most common questions EV buyers ask is: how much cheaper is an EV to run compared to a petrol or CNG car? The answer depends on your electricity tariff, local fuel prices and your vehicle's efficiency — but here is a representative comparison using typical figures:
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Figures are indicative. Use the V3Cars Fuel Cost Calculator and EV Mileage Calculator with your vehicle's actual efficiency and local prices for precise comparisons.
An electric car running on home electricity at ₹8/kWh costs approximately 80% less per kilometre than an equivalent petrol car and 63% less than a CNG car — making EVs by far the cheapest option for running costs once the higher purchase price is accounted for.
Electricity tariff rates in India vary significantly by state, utility provider, consumption slab and connection type. Here are approximate residential rates across major states:
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Public charging stations typically charge ₹15–22/kWh — significantly higher than home charging. Charging your EV primarily at home is almost always the most cost-effective option.
Some states offer preferential EV tariffs or dedicated EV charging connections at lower rates — check with your local electricity distribution company (DISCOM) for the latest applicable rate.
Multiply your EV's usable battery capacity (in kWh) by your real-world km/kWh efficiency. For example: an EV with 40 kWh usable battery achieving 6 km/kWh has a real-world range of approximately 240 km. This will always be lower than the manufacturer's claimed range.
Both measure the same thing — EV efficiency — but from opposite directions. km/kWh tells you how far you travel per unit of energy (higher is better). kWh/100km tells you how much energy you use per 100 kilometres (lower is better). To convert: kWh/100km = 100 ÷ km/kWh.
At a typical home tariff of ₹8/kWh, charging a 40 kWh battery from 20% to 100% (32 kWh) costs approximately ₹256. A full charge from 0–100% costs approximately ₹320. Monthly charging costs for 1,500 km of driving typically range from ₹1,500–₹2,500 depending on your electricity tariff and EV efficiency.
Yes — significantly. Public fast chargers in India typically cost ₹15–22/kWh versus ₹5–10/kWh for home charging. Charging entirely at public stations can increase your EV running cost by 2–3x compared to home charging. Use the calculator to compare costs at different tariff rates.
Yes. Select "Bike" or "Others" in the vehicle type filter. Enter your e-bike's distance, energy consumed in kWh and your electricity tariff. The efficiency and cost calculations work identically for two-wheelers.
Switch to miles using the unit toggle at the top. Enter your distance in miles — the calculator will display efficiency in miles per kWh and cost per mile. Energy input remains in kWh regardless of the distance unit selected.
Manufacturer range figures for EVs in India are tested under the MIDC (Modified Indian Driving Cycle) standard — a controlled test with no AC, specific speeds and ideal temperatures. Real-world driving with AC, highway speeds and a loaded cabin typically delivers 20–35% less range than the MIDC figure.
