Free Utility Calculators
Everyday tools, converters, construction, and measurement calculators. All tools are free, accurate, and require no account.
Tip Calculator
Calculate tip amount and split the bill among any number of people.
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Utility Tools
23 calculatorsConcrete Calculator
Calculate how many bags of concrete you need for slabs, footings, and columns.
Square Footage Calculator
Calculate square footage for rooms, walls, flooring, and irregularly shaped areas.
Stair Calculator
Calculate stair dimensions including rise, run, and number of steps.
Roofing Calculator
Estimate roofing materials needed based on roof area and pitch.
Tile Calculator
Calculate how many tiles you need for a floor or wall with waste factor.
Mulch Calculator
Calculate how much mulch you need in cubic yards for your landscaping project.
Gravel Calculator
Calculate how much gravel you need in tons or cubic yards for your project.
Fuel Cost Calculator
Estimate fuel cost for a trip based on distance, fuel efficiency, and gas price.
Gas Mileage Calculator
Calculate your vehicle's MPG from miles driven and gallons used.
Tip Calculator
Calculate tip amount and split the bill among any number of people.
Mileage Calculator
Calculate mileage reimbursement based on distance and IRS standard rate.
Conversion Calculator
Convert between common units for length, weight, volume, and temperature.
Password Generator
Generate strong, secure random passwords with customizable length and character sets.
Dice Roller
Roll virtual dice with customizable sides, number of dice, and roll history.
IP Subnet Calculator
Calculate IP subnets, CIDR ranges, network addresses, and broadcast addresses.
Bandwidth Calculator
Calculate download time and convert between bandwidth units.
Base64 Encode Decode
Encode text to Base64 or decode Base64 strings back to plain text.
URL Encode Decode
Encode or decode URLs and query strings for safe transmission.
Bra Size Calculator
Calculate your bra size from band and bust measurements in US and EU sizing.
Shoe Size Conversion
Convert shoe sizes between US, UK, EU, and cm for men, women, and kids.
Tire Size Calculator
Compare tire sizes and calculate speedometer correction for different tires.
Golf Handicap Calculator
Calculate your golf handicap index from recent round scores.
Love Calculator
Calculate a fun compatibility score between two names for entertainment.
Explore Other Categories
We cover all major calculator categories for your everyday needs.
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Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and amortization schedule.
Amortization Calculator
See your full loan amortization schedule with principal and interest breakdown by month.
Loan Calculator
Estimate monthly payments and total cost for any personal or auto loan.
Car Payment Calculator
Calculate your monthly car payment and total loan cost based on price, rate, and term.