Free Tools for Everyday Problems
Calculate, convert, estimate, plan, and solve common tasks in one simple place — fast, private, and free.
Popular Tools
The calculators and converters people use most.
Mortgage Calculator
Estimate your monthly mortgage payment including taxes and insurance.
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BMI Calculator
Calculate your Body Mass Index and see your weight category.
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Word Counter
Count words, characters, sentences, and reading time as you type.
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Calorie Calculator
Estimate your daily calorie needs based on your body and activity level.
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Compound Interest Calculator
Calculate how a lump sum grows over time with compound interest.
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GPA Calculator
Calculate your GPA from your courses, grades, and credit hours.
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Paycheck Tax Withholding Calculator
Check if your paycheck withholds too much or too little federal tax.
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Concrete Calculator
Calculate cubic yards, cubic meters, and bags of concrete for slabs, footings, and pads.
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Percentage Calculator
Calculate percentages, percentage of a number, or percentage change.
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Tip Calculator
Calculate the tip amount and split the bill between people.
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.
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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.
16 tools →
Auto
Estimate fuel costs and fuel economy (MPG or L/100km), 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.
10 tools →
Business
Pricing, margin, and rate calculators for small business owners and freelancers.
7 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.
7 tools →
Everyday Tools
Handy day-to-day tools — age and date calculators, percentages, random numbers, secure passwords, and QR codes.
33 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 →Calorie Calculator
Estimate your daily calorie needs based on your body and activity level.
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Profit Margin Calculator
Calculate your profit margin and markup from revenue and cost.
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Roofing Calculator
Estimate roofing squares and surface area based on footprint and roof pitch.
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Fuel Cost Calculator
Calculate the fuel cost for any trip based on distance and fuel economy.
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Break-Even Calculator
Calculate how many units you need to sell to break even.
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Travel Budget Calculator
Estimate your total trip budget including flights, lodging, food, and activities.
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Length Converter
Convert between meters, feet, inches, and other length units.
Use tool →Recently Added Tools
We're constantly adding new tools — here's what's new.
TDEE Calculator
Find your daily calorie needs (Total Daily Energy Expenditure).
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Calorie Deficit Calculator
Find the daily calorie deficit to reach your goal weight.
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One Rep Max Calculator
Estimate your 1RM and get training weights by rep.
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Ovulation Calculator
Estimate your fertile window and ovulation day.
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Random Wheel Spinner
Spin a wheel to pick a random winner from your list.
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Dice Roller
Roll virtual dice — d4 to d20 — with a fair result.
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Binary Translator
Translate text to binary and binary back to text.
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Fantasy Name Generator
Generate fantasy names for elves, dwarves, orcs & dragons.
Use tool →Guides & Resources
Short, practical how-to guides that show the math behind our tools — with real examples.
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.