EV Calculators & Tools

14 interactive decision tools for prospective and current EV owners. All free, no signup, no data collection.

Compare EVs
Side-by-side specs, range, and pricing across 100+ electric vehicles. Filter by price, range, charging speed.
Cold-Weather Range Calculator NEW
How much range will your EV actually deliver at 20°F? Calibrated to AAA 2026 winter data + Recurrent heat-pump retention rates for 144 EV trims.
Used EV Battery Health
Check used EV battery degradation before you buy. Real-world SOH curves for every EV with thermal management notes.
EV Tax Credit 2026 Explainer
What's left after the OBBBA killed the $7,500 federal credit Sept 30, 2025 — plus an interactive eligibility checker for the new $10K auto-loan interest deduction.
EV Incentives by State (Interactive Map) NEW
Click any state for its current EV rebate, registration fee, sales tax treatment, and right-to-charge law. Verified monthly against state energy offices.
EV Lease vs Buy Calculator NEW
Real market residual data instead of dealer estimates. Tells you when a lease is genuinely a good deal vs when you're being overcharged.
EV + Solar Savings Calculator
Rooftop solar + EV ownership cost calculator using real Google Solar API satellite imagery. State-specific incentives and electricity rates.
NACS Connector Checker
Does your EV have the Tesla connector or need an adapter? Adapter status by make, model, and year for the entire US market.
Home Panel Calculator
Will your home electrical panel handle a Level 2 EV charger? Free NEC 220.83 + 220.87 calculator with load-management credit and ranked recommendations if your panel needs work.
EV Warranty Rankings
Every EV battery warranty scored and compared. Years, mileage caps, SOH thresholds, transferability, and fine print.
EV Insurance Cost Calculator
Estimate insurance costs for every major EV. State multipliers, model factors, and side-by-side comparison.
Apartment Charge Score
EV readiness score for apartment and condo dwellers. Charger density, right-to-charge laws, and a template letter to your landlord.
EV Depreciation Tracker
Which EVs hold value best? 2-year retention rankings for 80+ models with category-level depreciation curves.
EV Deals & Incentives
Active manufacturer incentives, lease offers, and state rebates updated regularly.
More tools coming soon: DC fast-charge curve comparator, towing range calculator, time-of-use charging optimizer, and a real-world TCO comparator (EV vs gas).