CALCULATOR DIRECTORY
All calculators
Find all 20 tools for solar, electric vehicles, household energy and finance. Use local inputs worldwide; country-specific tools are clearly marked.
Showing 20 calculators
Electric Vehicles 4
- Worldwide · use your local inputsEV Charging Cost CalculatorCalculate EV charging cost in 95 currencies, kilometres or miles. Compare home, public fast charging, and petrol or gasoline anywhere in the world.Open calculator
- Worldwide · use your local inputsEV Charging Time CalculatorEstimate how long it takes to charge your electric vehicle from your battery size, charger power, and charge levels.Open calculator
- Worldwide · use your local inputsEV vs Gas Savings CalculatorCompare EV and petrol or gasoline costs in 95 currencies, kilometres or miles. Calculate annual savings and purchase-price break-even.Open calculator
- Worldwide · use your local inputsEV Range CalculatorEstimate how far you can drive on your current charge, in kilometres or miles, from any efficiency unit — kWh/100 km, Wh/km, km/kWh or mi/kWh.Open calculator
Solar 13
- Local inputs · NEC controller marginRV Solar CalculatorSize an RV solar setup in seconds. Get panel wattage, battery Ah, charge controller and inverter sizing using an NEC 690.8 safety margin.Open calculator
- Worldwide · use your local inputsSolar Power Calculator — kWh, Cost & SavingsEstimate solar system size, installed cost, production and savings using local prices in your currency.Open calculator
- Worldwide · use your local inputsSolar Payback Period & ROI CalculatorEstimate solar payback, ROI and 25-year cash flow in your currency using local installation costs, electricity prices and export rates.Open calculator
- Local grid inputs · EPA comparisonsSolar Panel CO₂ Savings CalculatorEstimate the annual and 25-year CO2 emissions avoided by your PV system, using EPA eGRID 2024 grid emission factors.Open calculator
- US standards · engineering referenceSolar Fuse Size CalculatorEstimate DC fuse size using NEC-based assumptions. A US engineering reference; confirm local electrical requirements.Open calculator
- Worldwide · use your local inputsSolar Panel Size Calculator — Panels from kWhFind system size, panel count and roof area in square metres or feet using your electricity use and local sun hours.Open calculator
- Worldwide · use your local inputsSolar Pool Pump CalculatorEstimate pool pump and solar array size in metric or US units, then calculate savings in your local currency.Open calculator
- Worldwide · use your local inputsSolar Loan CalculatorEstimate your monthly solar loan payment, total interest, and net monthly cost — search your country, price it in 95 currencies, on flat or reducing-balance rates.Open calculator
- US standards · engineering referenceSolar Panel Snow Load CalculatorEstimate panel snow loads using ASCE-based assumptions. A US engineering reference; confirm local structural requirements.Open calculator
- Worldwide · use your local inputsHybrid Solar System CalculatorSize a grid-tied hybrid solar system: PV array kW, battery kWh, hybrid inverter capacity, and annual self-consumption.Open calculator
- United States · tax rulesUS Solar Tax Credit CalculatorUS-only residential solar tax and state incentive estimates. Verify eligibility and installation-date rules.Open calculator
- United States · tax rulesUS Solar ITC CalculatorUS-only business solar investment tax credit estimates. Includes the tax assumptions and eligibility limits of the model.Open calculator
- Worldwide · use your local inputsSolar Feed-in Tariff CalculatorCalculate solar export income and self-consumption savings from your local electricity and feed-in tariff rates in your currency.Open calculator
Home Finance 2
- Multiple currencies · fixed-rate modelMortgage CalculatorEstimate fixed-rate mortgage payments in your currency, with optional local taxes, insurance and extra payments. US-style PMI is optional.Open calculator
- Multiple currencies · fixed-rate modelRefinance CalculatorCompare fixed-rate loan refinancing in your currency, including payments, fees, interest and the break-even month.Open calculator