Tesla Calculators

Seven interactive tools to answer the questions you'll actually have. No sign-up, no tracking, all the math is visible in your browser.

⚡ Charging cost 💵 EV vs gas ❄️ Cold weather range 🗺️ Road trip planner 🏠 Home install payback 🔋 Battery degradation 🇺🇸 Federal tax credit

⚡ Charging cost calculator

How much will it actually cost to charge your Tesla? Plug in your kWh rate and we'll do the rest.

Battery size (kWh):

Electricity rate (¢/kWh):

Start SOC (%):

End SOC (%):

Miles driven per year:

Wh/mile efficiency:

—

per charging session (20% → 80%)

Per month

—

total electricity

Per year

—

total electricity

Cost per mile

—

in electricity

Includes ~10% charging losses. Default 280 Wh/mi is Model Y LR EPA-rated. Vermont VEC TOU overnight is around $0.15/kWh; CA peak can hit $0.40/kWh.

💵 EV vs Gas savings calculator

How much would you save (or not) by switching from gas to electric over 5 years?

Miles driven per year:

Current car MPG:

Gas price ($/gallon):

Electric rate (¢/kWh):

Tesla efficiency (Wh/mi):

Annual maintenance savings ($):

—

annual savings (fuel + maintenance)

Gas cost/yr

—

at current rate

EV cost/yr

—

electricity only

5-year total

—

cumulative savings

❄️ Cold weather range estimator

Vermont winters bite hard. Here's what to actually expect for range at temperature.

EPA range (mi): Model Y LR 2021+: 330. Model 3 LR: 358. Model S: 405.

Outside temperature (°F): 20

Avg highway speed (mph):

Cabin heat usage:

—

realistic range at these conditions

0 mi 100% of EPA EPA

Tips will appear here based on conditions.

🗺️ Road trip charging planner

How many charging stops will a trip actually require? And how much time does it add?

Total trip distance (mi):

Your Tesla's real-world range (mi): Use ~80% of EPA for highway driving

Start SOC (%):

Arrive with SOC (%):

Avg charging stop (min): Supercharger: 20-30 min. Other DCFC: 30-50 min.

Avg driving speed (mph):

Charging stops

—

needed for this trip

Total time

—

drive + charging

Time added

—

vs driving non-stop

Adjust values to see results.

🏠 Home charging install payback

Does installing a Wall Connector actually pay for itself vs just using public charging?

Wall Connector cost ($):

Electrician install ($): Typical 6 AWG run on 60A breaker: $800-1,500

Home electric rate (¢/kWh):

Public DCFC rate (¢/kWh): Supercharger peak: $0.38-0.50/kWh

Annual miles:

Wh/mi efficiency:

—

payback period

Annual savings

—

home vs public charging

10-year savings

—

net after install cost

🔋 Battery degradation estimator

How much range loss should you expect on a used Tesla? This is a rough estimate based on Tesla owner data.

Original EPA range (mi):

Vehicle age (years):

Total miles driven:

Supercharging frequency:

Primary climate:

Typical charging habit:

—

estimated current full-charge range

Original 0% loss

🇺🇸 Federal Clean Vehicle Tax Credit checker

Are you eligible for the $7,500 new EV credit (§30D) or $4,000 used EV credit (§25E)?

Vehicle type:

Filing status:

Your modified AGI ($):

Vehicle purchase price ($):

—

Enter values above

Disclaimer: These are estimates only. Tax credit eligibility also depends on vehicle assembly location, battery component sourcing, and other IRS requirements that change. Consult a tax professional and the official IRS Clean Vehicle Credits page before purchase.

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