Free Tools for Everyday Problems
Calculate, convert, estimate, plan, and solve common tasks in one simple place — fast, private, and free.
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Popular Tools
The calculators and converters people use most.
Mortgage Calculator
Estimate your monthly mortgage payment including taxes and insurance.
Use tool →HealthBMI Calculator
Calculate your Body Mass Index and see your weight category.
Use tool →Home & GardenPaint Calculator
Estimate how many gallons of paint you need for any room.
Use tool →ConstructionConcrete Calculator
Calculate cubic yards and bags of concrete for slabs, footings, and pads.
Use tool →FinanceTip Calculator
Calculate the tip amount and split the bill between people.
Use tool →Everyday ToolsPercentage Calculator
Calculate percentages, percentage of a number, or percentage change.
Use tool →Everyday ToolsAge Calculator
Calculate your exact age in years, months, and days.
Use tool →Everyday ToolsPassword Generator
Generate a strong, random password with customizable character sets.
Use tool →Browse by Category
EveryFix covers far more than calculators — explore tools by topic.
Home & Garden
Plan home improvement and yard projects with confidence. Estimate paint, flooring, mulch, sod, and more before you shop.
12 tools →Construction
Estimate materials for building projects — concrete, lumber, roofing, rebar, brick, insulation, and asphalt.
12 tools →Finance
Understand mortgages, loans, savings, and everyday money decisions with clear, easy-to-use financial calculators.
12 tools →Auto
Estimate fuel costs, MPG, EV charging costs, and road trip budgets for any vehicle.
6 tools →Health
Everyday wellness calculators for BMI, calories, water intake, and more. Estimates only — always consult a professional.
6 tools →Business
Pricing, margin, and rate calculators for small business owners and freelancers.
6 tools →Travel
Budget trips and keep track of time zones and distances while you travel.
3 tools →Unit Converters
Fast, accurate conversions between metric and imperial units for length, weight, temperature, area, volume, and speed.
6 tools →Everyday Tools
Handy day-to-day tools — age and date calculators, percentages, random numbers, secure passwords, and QR codes.
6 tools →Planning Tools
Checklists and countdowns that help you get organized for a trip, a move, or any big event.
3 tools →Featured Calculators
A closer look at some of our most useful, in-depth calculators.
Compound Interest Calculator
Calculate how a lump sum grows over time with compound interest.
Use tool →HealthCalorie Calculator
Estimate your daily calorie needs based on your body and activity level.
Use tool →BusinessProfit Margin Calculator
Calculate your profit margin and markup from revenue and cost.
Use tool →ConstructionRoofing Calculator
Estimate roofing squares needed based on footprint and roof pitch.
Use tool →AutoFuel Cost Calculator
Calculate the fuel cost for any trip based on distance and MPG.
Use tool →BusinessBreak-Even Calculator
Calculate how many units you need to sell to break even.
Use tool →TravelTravel Budget Calculator
Estimate your total trip budget including flights, lodging, food, and activities.
Use tool →Unit ConvertersLength Converter
Convert between meters, feet, inches, and other length units.
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Recently Added Tools
We're constantly adding new tools — here's what's new.
Packing List Generator
Generate a customized packing checklist based on your trip type and length.
Use tool →PlanningMoving Checklist Generator
Generate a week-by-week checklist for your upcoming move.
Use tool →PlanningEvent Countdown Calculator
Count down the days, hours, and minutes until any event.
Use tool →Everyday ToolsAge Calculator
Calculate your exact age in years, months, and days.
Use tool →Everyday ToolsDate Difference Calculator
Calculate the number of days, weeks, or years between two dates.
Use tool →Everyday ToolsPercentage Calculator
Calculate percentages, percentage of a number, or percentage change.
Use tool →Everyday ToolsRandom Number Generator
Generate one or more random numbers within any range.
Use tool →Everyday ToolsPassword Generator
Generate a strong, random password with customizable character sets.
Use tool →Why Use EveryFix?
Fast & Free
Every tool loads quickly and works instantly — no sign-up, no paywall, no fuss.
Private by Design
Calculations run entirely in your browser. Your numbers are never sent to or stored on our servers.
Built for Every Device
A clean, responsive design that works just as well on your phone as it does on your desktop.
Your Data Stays With You
Every calculator on EveryFix runs locally in your web browser using JavaScript. The numbers you type in — your income, your weight, your home price — are never transmitted to or stored on our servers. Close the tab, and it's gone. Read our Privacy Policy for full details.
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