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EV Charging Cost Calculator for Tesla and Other EVs

Use this EV charging cost calculator for Tesla and other EVs to estimate trip and monthly costs from vehicle energy use and local electricity prices.

Method and sources checked July 13, 2026Planning estimateSource note included

Live calculator

EV charging cost

Charging cost$20.53

73.3 kWh drawn from the charger.

Monthly charging cost$82.13

4 similar charging sessions per month.

Cost per mile$0.093

30 kWh per 100 miles before charging losses.

Energy breakdown
PartEnergy
Battery energy66 kWh
Wall energy with losses73.3 kWh

Use the actual EV efficiency and applicable electricity rate. Home tariffs, public-charging fees, time-of-use pricing, weather, driving conditions, and charging losses can change real cost.

Quick answer

EV Charging Cost Calculator for Tesla and Other EVs: what it calculates

EV Charging Cost Calculator for Tesla and Other EVs calculates estimated charging cost from miles driven, kWh per 100 miles, electricity price, charging loss, and charges per month. The visible formula is Charging cost = miles x kWh per 100 miles / 100 x electricity price / (1 - charging loss).

ResultEstimated charging cost
InputsMiles driven, kWh per 100 miles, Electricity price, Charging loss, Charges per month
FormulaEV charging cost formula

Formula

EV charging cost formula

Charging cost = miles x kWh per 100 miles / 100 x electricity price / (1 - charging loss)

Use your actual vehicle efficiency and electricity rate for a useful estimate.

How to use

Steps

  1. Enter the miles covered by the charging scenario.
  2. Enter energy use in kWh per 100 miles.
  3. Add electricity price per kWh.
  4. Include charging loss as a percentage.
  5. Set how many similar charging sessions happen per month.

Example

Sample calculation

Miles driven220
Efficiency30 kWh/100 mi
Electricity rate$0.28/kWh
Trip costAbout $20.53 with 10% losses

Calculator use

Best for

  • Comparing trip, commute, and monthly charging cost for a Tesla or another EV.
  • Testing how vehicle efficiency, electricity price, and charging loss change the estimate.
  • Comparing home charging with a separately entered public-charging rate.
  • Preparing an energy-cost estimate before checking the actual vehicle, charger, and tariff details.

Before relying on it

Check first

  • Do not treat the estimate as a live Tesla Supercharger price, utility quote, or charger invoice.
  • Using a generic efficiency value instead of the actual EV's kWh per 100 miles.
  • Ignoring charging loss, time-of-use pricing, session fees, idle fees, weather, or driving conditions.
  • Comparing charging scenarios with different mileage or efficiency inputs without noticing the change.

Details

What to know before using the result

Vehicle efficiencykWh per 100 miles

Higher speeds, cold weather, cargo, hills, and tire setup can raise energy use.

Charging lossWall energy vs battery energy

Losses account for energy drawn from the outlet that does not become usable battery energy.

Rate sourceHome or public tariff

Use your utility rate for home charging and station price for public charging.

Source notes

References used for this calculator

Alternative Fuels Data CenterExplains how electricity price and vehicle efficiency in kilowatt-hours per distance determine home charging cost.NISTNotes that retail electricity sold as vehicle fuel is measured in kilowatt-hours.

Benchmarks

How to read the result

Home rate: Usually lower.

Home charging is often cheaper per kWh when available.

Public AC: Mixed pricing.

Useful for errands or destination charging, but pricing varies by location.

DC fast charging: Often higher.

Useful for road trips, but usually worth modeling separately from home charging.

Calculator accuracy

Methodology and assumptions

Formula

Charging cost = miles x kWh per 100 miles / 100 x electricity price / (1 - charging loss)

Inputs used

Miles driven, kWh per 100 miles, Electricity price, Charging loss, Charges per month

Limitations

The estimate cannot predict actual range, charging speed, battery degradation, charger availability, live tariffs, session or idle fees, weather effects, or vehicle telemetry. It only applies the entered energy-use, price, distance, and charging-loss assumptions.

Method and sources checked

July 13, 2026. The documented method, source timing, validity conditions, and reliance limits were checked on this date.

Method provenanceEstimate · toolkitshelf.EV-charging-energy-cost.v1
Maintained by
Toolkit Shelf
Calculation class
Estimate
Method version
toolkitshelf.EV-charging-energy-cost.v1
Source date
Accessed July 13, 2026
Source checked
July 13, 2026
Intended audience
Tesla and other EV drivers comparing trip or monthly charging-cost scenarios from vehicle efficiency, electricity price, and charging loss.
Valid when
Use the actual EV's kWh per 100 miles, the applicable home or public charging price, and a reasonable charging-loss estimate. Weather, driving conditions, fees, idle charges, and time-varying tariffs can change actual cost.
Reliance boundary
This is an energy-cost estimate, not a charger quote, utility bill, vehicle range prediction, charging-speed forecast, or brand-specific charging recommendation.
Data freshness
The general relationship between vehicle energy use and electricity price was checked on July 13, 2026. No live tariff, vehicle telemetry, or brand-specific rate is embedded.
Cite this page

Toolkit Shelf. EV Charging Cost Calculator for Tesla and Other EVs. Page version July 13, 2026. https://toolkitshelf.com/tools/tesla-charging-cost-calculator

FAQ

Common questions

Does this work for Tesla and other EVs?

Yes. The same energy-cost method works for any EV when you enter that vehicle's energy use and the electricity price for the charging location.

Should I include charging losses?

Yes. Charging losses make the wall energy higher than the energy added to the battery, so including them is more conservative.

How do I compare home and public charging?

Run separate scenarios with each electricity rate, or use a weighted average rate if you know the share of miles charged at each price.