All Tools
Browse all 109+ free calculators, converters, generators, and planning tools. Filter by category or search by keyword.
109 tools
Paint Calculator
Estimate how many gallons or liters of paint you need for any room.
Use tool →Flooring Calculator
Calculate how much flooring material to buy, including waste allowance.
Use tool →Tile Calculator
Find out how many tiles you need based on room size and tile dimensions.
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Mulch Calculator
Calculate cubic yards, cubic meters, and bags of mulch for your garden beds.
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Gravel Calculator
Estimate cubic yards, cubic meters, tons, and tonnes of gravel for yard projects.
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Sod Calculator
Calculate how many rolls or pallets of sod you need for a new lawn.
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Fence Calculator
Estimate posts, rails, and concrete needed for a new fence.
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Deck Board Calculator
Calculate how many deck boards you need for your project.
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Wallpaper Calculator
Estimate how many rolls of wallpaper you need for a wall or room.
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Drywall Calculator
Calculate how many sheets of drywall or plasterboard you need for walls and ceilings.
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Garden Soil Calculator
Calculate cubic yards, cubic meters, and bags of soil for garden beds.
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Lawn Seed Calculator
Calculate how many pounds or kilograms of grass seed you need for your lawn.
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Concrete Calculator
Calculate cubic yards, cubic meters, and bags of concrete for slabs, footings, and pads.
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Lumber Board Feet Calculator
Calculate board feet (or timber volume) for lumber pricing and ordering.
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Roofing Calculator
Estimate roofing squares and surface area based on footprint and roof pitch.
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Stair Calculator
Calculate the number of risers and treads for a staircase.
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Square Footage Calculator
Quickly calculate area in square feet, square yards, acres, square meters, and hectares.
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Cubic Yard Calculator
Convert length, width, and height into cubic yards or cubic meters for any bulk material.
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Rebar Calculator
Estimate linear feet (or meters) and sticks of rebar for a concrete slab grid.
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Brick Calculator
Calculate how many bricks you need for a wall.
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Insulation Calculator
Calculate how many packages of insulation you need.
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Asphalt Calculator
Calculate tons or tonnes of asphalt needed for driveways and parking areas.
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Gravel Driveway Calculator
Estimate cubic yards, cubic meters, tons, and tonnes of gravel for a new driveway.
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Post Hole Concrete Calculator
Calculate concrete bags needed to set fence or deck posts.
Use tool →Mortgage Calculator
Estimate your monthly mortgage payment including taxes and insurance.
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Loan Payment Calculator
Calculate the monthly payment for any fixed-rate loan.
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Auto Loan Calculator
Calculate your monthly car payment including tax, trade-in, and down payment.
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Credit Card Payoff Calculator
See how long it will take to pay off a credit card balance.
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Savings Calculator
Project how your savings will grow with regular contributions.
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Compound Interest Calculator
Calculate how a lump sum grows over time with compound interest.
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Budget Calculator
Compare your spending to the popular 50/30/20 budgeting rule.
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Debt-to-Income Ratio Calculator
Calculate your debt-to-income ratio, a key number lenders check.
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Hourly to Salary Calculator
Convert an hourly wage into daily, weekly, monthly, and annual pay.
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Tip Calculator
Calculate the tip amount and split the bill between people.
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Sales Tax Calculator
Calculate sales tax and total price for any purchase.
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Discount Calculator
Calculate the final price after one or two stacked discounts.
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Home Affordability Calculator
Estimate how much house you can afford and get approved for.
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Paycheck Tax Withholding Calculator
Check if your paycheck withholds too much or too little federal tax.
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Budget Planner
Track your income, bills, and spending in a detailed monthly budget.
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Amortization Calculator
See a full loan amortization schedule of principal and interest.
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Fuel Cost Calculator
Calculate the fuel cost for any trip based on distance and fuel economy.
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MPG Calculator
Calculate your vehicle's real-world fuel economy in MPG or L/100km.
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EV Charging Cost Calculator
Estimate how much it costs to charge your electric vehicle.
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Road Trip Cost Calculator
Estimate total road trip costs including fuel, food, and lodging.
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Tire Size Calculator
Compare two tire sizes and see the difference in diameter and speedometer accuracy.
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Gas vs EV Cost Calculator
Compare annual fuel costs between a gas vehicle and an electric vehicle.
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BMI Calculator
Calculate your Body Mass Index and see your weight category.
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Calorie Calculator
Estimate your daily calorie needs based on your body and activity level.
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Water Intake Calculator
Estimate how much water you should drink daily based on your weight and activity.
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Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method.
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Pregnancy Due Date Calculator
Estimate your due date from your last period or conception date.
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Ideal Weight Calculator
Estimate a healthy weight range based on your height and sex.
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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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Profit Margin Calculator
Calculate your profit margin and markup from revenue and cost.
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Markup Calculator
Calculate the selling price needed to hit a target markup percentage.
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Break-Even Calculator
Calculate how many units you need to sell to break even.
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Invoice Total Calculator
Calculate an invoice total including discount, tax, and shipping.
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Hourly Rate Calculator
Calculate the hourly rate you need to charge to hit your income goal.
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Freelance Project Rate Calculator
Price a fixed-bid project based on hours, expenses, and target profit.
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Invoice Generator
Create and download a professional invoice with your logo.
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Travel Budget Calculator
Estimate your total trip budget including flights, lodging, food, and activities.
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Time Zone Converter
Convert a time between two time zones, with automatic daylight saving handling.
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Distance Converter
Convert travel distances between miles, kilometers, and nautical miles.
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Length Converter
Convert between meters, feet, inches, and other length units.
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Weight Converter
Convert between kilograms, pounds, ounces, and other weight units.
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Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
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Area Converter
Convert between square feet, square meters, acres, and hectares.
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Volume Converter
Convert between liters, gallons, cups, and other volume units.
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Speed Converter
Convert between mph, km/h, m/s, and knots.
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Fuel Economy Converter
Convert between MPG, L/100 km, and km/L.
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Age Calculator
Calculate your exact age in years, months, and days.
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Date Difference Calculator
Calculate the number of days, weeks, or years between two dates.
Use tool →Percentage Calculator
Calculate percentages, percentage of a number, or percentage change.
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Random Number Generator
Generate one or more random numbers within any range.
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Password Generator
Generate a strong, random password with customizable character sets.
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QR Code Generator
Create a scannable QR code from any text or URL, free and instantly.
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GPA Calculator
Calculate your GPA from your courses, grades, and credit hours.
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Word Counter
Count words, characters, sentences, and reading time as you type.
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Fraction Calculator
Add, subtract, multiply, and divide fractions with steps.
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Text to Speech
Turn any text into natural speech you can play or pause.
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Time Duration Calculator
Calculate hours and minutes between two times, minus breaks.
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Barcode Generator
Create real, scannable barcodes and download them as PNG.
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Lorem Ipsum Generator
Generate placeholder lorem ipsum text by paragraphs, sentences, or words.
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Color Palette Generator
Generate color palettes, lock favorites, and copy hex codes.
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Countdown Timer & Pomodoro
A free countdown timer and Pomodoro focus timer that beeps.
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JSON Formatter
Format, validate, and minify JSON instantly in your browser.
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Case Converter
Convert text to UPPERCASE, lowercase, Title, camelCase, and more.
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Random Name Generator
Generate random first and full names for any purpose.
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Number Base Converter
Convert numbers between binary, octal, decimal, and hex.
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Roman Numeral Converter
Convert numbers to Roman numerals and back.
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Scientific Calculator
Trig, logs, roots, powers, and constants — free online.
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URL Encoder / Decoder
Percent-encode or decode text and URLs instantly.
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UUID Generator
Generate random version-4 UUIDs instantly.
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Hash Generator
Compute SHA-1, SHA-256, SHA-384 & SHA-512 checksums.
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Coin Flip
Flip a virtual coin — a true, fair 50/50.
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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.
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Character Counter
Count characters, words, and lines with platform limits.
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Love Calculator
A fun compatibility score from two names.
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Username Generator
Generate cool username ideas for any account.
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Random Word Generator
Generate random words for games, prompts & practice.
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Packing List Generator
Generate a customized packing checklist based on your trip type and length.
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Moving Checklist Generator
Generate a week-by-week checklist for your upcoming move.
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Event Countdown Calculator
Count down the days, hours, and minutes until any event.
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