What's new on ChargeMath
Every tool and guide on this site in one chronological view. 27 calculators and 20 long-form guides as of the date above. Each item links to the page itself.
Latest guides
Most recent first, by publish date:
- EV winter checklist: pre-winter prep and daily routine A practical pre-winter checklist for EV owners — tire prep, software setup, charging routine, on-the-road tips, and what not to do. Print-friendly action list at the end.
- EV one-pedal driving explained: how it works and how to use it What one-pedal driving actually is, how it extends range and saves brake wear, the terminology each manufacturer uses, how to enable it on every major EV, and how to learn it without making passengers seasick.
- EV charging connector types in 2026: NACS, CCS1, J1772, CHAdeMO explained The four EV charging connectors you will encounter in North America in 2026 — what each one looks like, what it does, which adapters connect to which, and how the NACS transition has settled out.
- AWD vs RWD EV: which should you actually buy? A practical comparison of all-wheel-drive and rear-wheel-drive EVs in 2026 — the efficiency tradeoff, when AWD genuinely helps, when it is just marketing, and a model-by-model recommendation table.
- EV warranty in 2026: what's actually covered (and what isn't) The four warranty layers on a modern EV, what each one covers, how the 8-year battery warranty actually works, what voids it, and whether extended warranties are worth buying.
- EV insurance in 2026: why it costs more and how to lower it EV insurance runs 10-25% higher than gas-car insurance on average. The reasons, the numbers, the models that cost the most, and seven concrete levers to bring the premium down.
- Should you buy an EV in 2026? A decision framework A practical, no-hype framework for deciding whether an EV makes sense for your life — five questions that determine the answer, the 5-year cost picture, and when to wait instead.
- EV depreciation in 2026: what holds value and what doesn't How fast EVs lose value, why the curve looks different from gas cars, which models hold up best, and what buyers and sellers should actually do about it.
- Tesla Supercharger network for non-Tesla EVs in 2026 How to use Tesla Superchargers if you drive a Ford, GM, Hyundai, Kia, Polestar or other non-Tesla EV — adapters, the Tesla app, pricing, and compatibility quirks.
- EV efficiency explained: mi/kWh, kWh/100mi, and MPGe The three units used to describe EV efficiency — what each means, how to convert between them, and which to actually use day-to-day.
- How public EV charging actually works: a first-timer's guide A step-by-step walkthrough of your first public charge — networks, connector types, app vs tap-to-pay, costs, common gotchas, and etiquette.
- EV road trip planning: the essential checklist Pre-trip planning, the 10-80% charging rule, preconditioning, what to do if a charger is offline, and a worked 500-mile trip example.
- EV vs hybrid vs plug-in hybrid: which is right for you? Honest comparison between hybrids, plug-in hybrids, and pure EVs — who each is for, 5-year total cost, and a 3-question decision framework.
- Apartment EV charging: how to make it work without a home charger The five realistic charging options for renters and condo dwellers, what each one actually costs per year, choosing the right EV, and right-to-charge laws.
- EV battery life: how long do they really last? What real-world fleet data says about EV battery longevity, the three things that affect it most, and the habits that slow degradation.
- The federal EV tax credit explained: what qualifies in 2026 How the federal $7,500 new and $4,000 used clean vehicle credits actually work — vehicle, income, and dealer requirements, the lease loophole, and how to claim point-of-sale.
- Buying a used EV: what to check before you sign A practical pre-purchase checklist — battery health, tax credits, warranty status, charging port compatibility, and the test-drive specifics that matter.
- Installing a home EV charger: step-by-step What it costs, the four decisions you need to make first, the install process step-by-step, and the common gotchas to plan for.
- EV range in cold weather: what to expect and how to plan for it Why EVs lose 25–40% of range in cold weather, what the numbers actually look like, and the six things you can do to fight it.
- How much does it really cost to charge an EV at home? A 2026 breakdown The actual math behind home EV charging costs — efficiency losses, time-of-use plans, what your utility rate really means, and how DC fast charging compares.
Calculators (27)
All current calculators, grouped by category:
Charging
- EV Charging Cost Calculator Work out exactly what it costs to charge your EV from any percentage to any other.
- EV Charging Time Calculator See how long a charge will take, at home or on a public charger, for any battery and charger.
- EV Charging Speed Calculator See how many miles of range a charger adds per hour — the most intuitive way to think about charging speed.
- DC Fast Charging Session Cost See what a single DC fast-charge session costs, and how much extra you pay over home charging.
- Home Charger Amp & Breaker Calculator Find the amp draw, breaker size and wire gauge needed to install a home Level 2 EV charger.
- kW ↔ Amps Converter Convert between kilowatts and amps at any voltage — useful for sizing chargers, wires and breakers.
- EV Solar Panel Calculator Find out how many solar panels it takes to cover a year of EV driving with sunshine.
- EV Time-of-Use Charging Savings See how much an off-peak electricity plan saves over a flat rate when you charge mostly overnight.
- EV Daily Energy Need Calculator See how much electricity your EV actually uses per day, week, month and year.
Range
- EV Range Calculator Estimate the real-world driving range of an EV from its battery, efficiency and the weather.
- Highway Speed Range Impact See how much range an EV loses at highway speeds — aerodynamic drag is the biggest enemy of range.
- MPGe & Efficiency Converter Convert between mi/kWh, kWh per 100 miles, and MPGe — the three units used to describe EV efficiency.
- Road Trip Charging Stops Estimate how many charging stops and how much total time a long EV road trip will take.
- EV Battery Degradation Estimator Estimate how much battery capacity a used EV has lost based on its age and miles.
- EV Battery Replacement Cost Estimate what it would cost to replace an EV battery pack, by battery size and per-kWh price.
- EV Charging Frequency Calculator See how often you actually need to plug in based on your weekly miles and charging habits.
- EV Comparison Tool Compare any two popular 2025/2026 EVs side by side — range, efficiency, charging speed, MSRP, and 5-year running cost.
Savings
- EV vs Gas Savings Calculator Compare what you would spend on fuel each year with an EV versus a gas car.
- EV Cost Per Mile Calculator Compare what each mile actually costs in an EV versus a gas car, at your local rates.
- EV CO₂ Emissions Savings See how much carbon dioxide an EV saves over a gas car each year, at any grid mix.
- EV Break-Even Calculator Work out how many years until an EV pays back its price premium over a comparable gas car.
- EV Loan Monthly Payment Calculator Work out your monthly payment, total interest and total cost on an EV loan.
- EV Lease vs Buy Calculator Compare the 3-year cost of leasing an EV versus buying — including the value you walk away with.
- EV Resale Value Estimator Estimate the current resale value of a used EV from its original price, age and miles driven.
- EV Annual Maintenance Cost Compare what you would spend on maintenance each year with an EV versus a gas car.
- EV Trip Cost Calculator Work out the fuel cost of any specific trip in an EV — and how much you save versus a gas car.
- EV Total Cost of Ownership Calculator The full 5- or 10-year cost of owning an EV vs a gas car — purchase, fuel, maintenance, insurance, and depreciation in one number.
Recently added (rough order)
The newest 8 calculators based on the order they were built:
- EV Comparison Tool Compare any two popular 2025/2026 EVs side by side — range, efficiency, charging speed, MSRP, and 5-year running cost.
- EV Total Cost of Ownership Calculator The full 5- or 10-year cost of owning an EV vs a gas car — purchase, fuel, maintenance, insurance, and depreciation in one number.
- EV Trip Cost Calculator Work out the fuel cost of any specific trip in an EV — and how much you save versus a gas car.
- EV Annual Maintenance Cost Compare what you would spend on maintenance each year with an EV versus a gas car.
- EV Resale Value Estimator Estimate the current resale value of a used EV from its original price, age and miles driven.
- EV Lease vs Buy Calculator Compare the 3-year cost of leasing an EV versus buying — including the value you walk away with.
- EV Loan Monthly Payment Calculator Work out your monthly payment, total interest and total cost on an EV loan.
- EV Break-Even Calculator Work out how many years until an EV pays back its price premium over a comparable gas car.
Update cadence
New tools are added when they fill a real gap that the existing ones don't cover. Long-form guides go up when there's a topic with meaningful reader interest that current online coverage handles poorly. Existing tools and guides are reviewed at least once a year and after any major industry shift (new federal credit rules, NACS network milestones, new model-year releases).
Every page carries a "Last updated" timestamp at the bottom. The RSS feed publishes every new guide as it's released — subscribe in your reader to catch updates.
How to suggest the next addition
Have an idea for a calculator we haven't built or a guide on a topic we haven't covered? Send it via the contact page — suggestions from real users drive most additions.