Stop guessing what
everything costs you.
Free everyday usage & cost calculators that actually save you money.
Energy & Home
Multi-Appliance Electricity Cost Calculator
Add household appliances and see live daily kWh, monthly and yearly bill estimates.
Open toolSolar Panel Savings & Payback Calculator
Estimate how many panels you need, monthly savings and years to payback.
Open toolEV Charging Cost Calculator
Compare the cost of charging your EV at home vs public stations.
Open toolAC & Heater Running Cost Calculator
Find out exactly what your air conditioner or heater costs per hour, day and month.
Open toolGenerator & Battery Backup Sizing Calculator
Size a backup generator or home battery for your essential appliances.
Open toolWater Usage & Bill Calculator
Estimate household water consumption and monthly water bills.
Open toolAuto & Fuel
Fuel & Trip Cost Calculator
Calculate the fuel cost of any trip from distance, mileage and gas price.
Open toolEV vs Gas Cost-Per-Mile Comparison
See which is cheaper to drive: an electric car or a gas car, per mile and per year.
Open toolTrue Car Ownership Cost Calculator
Fuel, insurance, depreciation and maintenance — the real cost of owning your car.
Open toolMoney & Finance
Daily Interest & Loan Payoff Calculator
See how fast you can clear a loan and how much interest you'll really pay.
Open toolCredit Card Payoff (Snowball vs Avalanche)
Compare payoff strategies and crush credit card debt faster.
Open toolSubscription Spend Calculator
Add up what all your subscriptions really cost you per month and per year.
Open toolFreelancer Hourly Rate Calculator
Work out the hourly rate you need to hit your income goals.
Open toolDaily Wage & Take-Home Pay Calculator
Convert salary to daily, weekly and take-home pay.
Open toolTech & SaaS
Cloud Hosting & Server Cost Estimator
Estimate monthly hosting costs across plans, storage and bandwidth.
Open toolMobile Data Usage & Overage Calculator
Find out if your data plan fits your usage — and what overages cost.
Open toolAI API / Token Cost Calculator
Estimate the cost of LLM API usage by tokens, requests and model.
Open toolHealth & Lifestyle
Daily Calorie & Maintenance Calculator
Estimate your daily calorie needs for maintenance, loss or gain.
Open toolDaily Water Intake Calculator
How much water you should drink per day based on weight and activity.
Open toolScreen Time & Productivity Cost Calculator
Turn daily screen time into hours and lost-productivity cost per year.
Open toolLatest Educational Guides
Understand the numbers behind your bills.
How to Calculate Kilowatt-Hours (kWh) for Any Household Appliance
Master the simple formula that converts an appliance's wattage and runtime into the kilowatt-hours your utility actually bills you for.
Read guide5 Hidden Energy Vampires Crushing Your Monthly Electric Bill
Phantom loads and always-on devices can quietly add double digits to your bill every month. Here are the five worst offenders and how to stop them.
Read guide