Converters

Free tools in this category, built for quick workflows.

Unit Converter

Convert length, weight, temperature, and area units.

Calculate percentages, increase, and decrease easily.

Split bills and calculate tip by percentage.

Estimate monthly payment, total interest, and total repayment.

Estimate gross pay, taxes, and take-home pay for each paycheck.

Track weekly work hours, overtime, and gross pay from clock-in entries.

Calculate tax amount, pre-tax price, and final total in seconds.

Apply discount first, then calculate sales tax and final checkout total.

Estimate annual percentage rate or monthly payment for a fixed-term loan.

Upload CSV and detect recurring charges, duplicates, and possible wasted spend.

Model ad tiers, annual plans, and bundles to cut recurring subscription costs.

Estimate quarterly tax payments and due-date targets for freelancers and side income.

Estimate EV charging costs by U.S. state with home/public mix and gas comparison.

Estimate charging stops, charging time, and trip cost for long-distance EV travel.

Calculate selling price, markup, margin, and profit from cost data.

Convert between USD, EUR, GBP, CAD, AUD, JPY, and CNY.