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Free Everyday Tools

Use everyday tools when you need a fast answer for an ordinary task: a quick estimate, a generated value, a small comparison, or a copy-ready result. The tools keep the workflow simple and show the checks that matter before you rely on the output.

22

tools available

22

guides available

Free

No signup needed

What this category helps with

  • Small browser utilities for everyday decisions, random picks, and quick personal tasks.
  • Private in-browser workflows that avoid signup and keep simple answers easy to copy.
  • A growing place for practical tools that do not fit a strict math category.

Start with these tools

Random Number Generator Generate random numbers in a custom range, with unique, sorted, and copied results. Dice Roller Roll one or more virtual dice with custom sides and a modifier. Fuel Cost Calculator Estimate fuel cost from distance, MPG, fuel price, and round-trip setting. Gas Mileage Calculator Work out MPG from a real fill-up, plus gallons per 100 miles and L/100 km. Tip Calculator Calculate tip, tax, total bill, and per-person split. Mileage Calculator Estimate mileage reimbursement from miles, rate per mile, parking, tolls, and extras.

All everyday tools

Open a tool, try the examples, then use the matching guide when you need more explanation.

Random Number Generator Generate random numbers in a custom range, with unique, sorted, and copied results. Open Dice Roller Roll one or more virtual dice with custom sides and a modifier. Open Fuel Cost Calculator Estimate fuel cost from distance, MPG, fuel price, and round-trip setting. Open Gas Mileage Calculator Work out MPG from a real fill-up, plus gallons per 100 miles and L/100 km. Open Tip Calculator Calculate tip, tax, total bill, and per-person split. Open Mileage Calculator Estimate mileage reimbursement from miles, rate per mile, parking, tolls, and extras. Open Bra Size Calculator Estimate a starting bra band and cup size from bust and underbust measurements. Open BTU Calculator Estimate room air conditioner BTU capacity from room size and simple adjustments. Open Electricity Calculator Estimate electricity use and cost from watts, hours, days, and rate per kWh. Open Tire Size Calculator Calculate tire diameter, sidewall height, circumference, and revs per mile from a metric tire size. Open Wind Chill Calculator Calculate wind chill from Fahrenheit temperature and wind speed using the NWS formula. Open Heat Index Calculator Calculate heat index from Fahrenheit temperature and relative humidity. Open Dew Point Calculator Estimate dew point from Fahrenheit temperature and relative humidity. Open Engine Horsepower Calculator Estimate engine horsepower from torque and RPM with optional drivetrain loss. Open Golf Handicap Calculator Estimate score differential, course handicap, and playing handicap from the numbers on your scorecard. Open Love Calculator Type two names and get a silly match score for fun. Open Device Battery Life Calculator Estimate battery runtime from mAh, voltage, device watts, and efficiency. Open Recipe Scaler Scale one recipe ingredient from original servings to the servings you want to make. Open Ingredient Cost Calculator Estimate how much one recipe ingredient costs from package price and amount used. Open Unit Price Calculator Compare two products by price per shared unit so the cheaper package is clearer. Open Cost Per Serving Calculator Split a recipe, meal prep, or food batch cost across the number of servings. Open Baking Pan Conversion Calculator Compare rectangular baking pan areas and estimate how much to scale a recipe. Open

Guides for this category

Each guide uses its matching tool, with example numbers and plain limits.