Cost calculators
Plug in your numbers, get a realistic figure for home projects, energy bills, cars and hardware. Every calculator shows its assumptions so you know exactly where the estimate comes from.
Home & Repairs
Guides →Ownership Cost Comparison Calculator
Compare two purchases: upfront price, energy, subscriptions, upkeep, repairs and resale.
Open calculator → Home & RepairsMini-Split Cost Calculator
Test an area-based capacity and cost scenario, with limits clearly flagged before equipment selection.
Open calculator → Home & RepairsWater Heater: Repair or Replace?
Compare repair and installed replacement quotes, energy and upkeep over the same budget period.
Open calculator → Home & RepairsRoof Replacement Cost Calculator
By roof size, pitch and material.
Open calculator → Home & RepairsWindow Replacement Cost Calculator
Per-window pricing by frame type.
Open calculator → Home & RepairsHVAC: Repair or Replace?
Age, repair quote and replacement price checked against the 50% and $5,000 rules of thumb.
Open calculator → Home & RepairsChristmas Tree and Lights Cost Calculator
Real vs artificial tree break-even, plus what your lights add to the electric bill.
Open calculator →Energy & Bills
Guides →Space Heater Cost Calculator
Watts, hours and your state rate in: cost per hour, per month and per winter out.
Open calculator → Energy & BillsHeat Pump Payback Calculator
Estimate yearly savings and how many years a heat pump takes to pay for itself.
Open calculator → Energy & BillsSolar Panel Payback Calculator
Direct solar use, export credits and maintenance, with annual cash-flow checkpoints.
Open calculator → Energy & BillsAC Running Cost Calculator
Window, central or mini-split: cost per hour, month and cooling season at your state rate.
Open calculator → Energy & BillsElectric Bill Estimator
Estimate from a tariff or historical benchmark, then compare two bills by usage, effective price and days.
Open calculator → Energy & BillsSolar System Size Calculator
Monthly kWh and sun hours in: system kW, panel count, yearly production and cost range.
Open calculator →Cars
Guides →Hybrid Break-Even Calculator
Hybrid premium, miles and gas price in: years until the hybrid pays for itself.
Open calculator → CarsCar Cost of Ownership Calculator
Five-year true cost: depreciation, insurance, fuel, maintenance and resale.
Open calculator → CarsCar Payment Calculator
Monthly payment, total interest and the price you can afford, with 36 to 84 month terms compared.
Open calculator → CarsDrive vs Fly Calculator
Gas, tolls, bags, parking and airfare for your whole group: which trip costs less.
Open calculator →Tech & Crypto
Guides →GPU AI Rental Income Calculator
Test paid utilization, idle and rented power, fee treatment and operating break-even.
Open calculator → Tech & CryptoGPU Mining Profitability Calculator
Card price, power draw and revenue in: daily profit and break-even out.
Open calculator → Tech & CryptoAntminer Profitability Calculator
Model presets and your electricity rate: daily profit and ROI months.
Open calculator → Tech & CryptoConsole Cost of Ownership Calculator
Your console purchase, membership, games, power and resale in one ownership budget.
Open calculator →