166 free online calculators
Calculate percentages: what is X% of Y, percentage change, and more....
Fraction to Decimal CalculatorConvert any fraction to its decimal and percentage equivalent....
Tip CalculatorCalculate tips for restaurant bills and split evenly among diners....
Discount CalculatorCalculate the sale price and savings from a percentage discount....
Profit Margin CalculatorCalculate profit margin, markup percentage, and gross profit from cost and selling price or revenue....
Bill Splitter CalculatorSplit a restaurant bill or group expense evenly, including tip and tax. See exactly what each person...
Markup CalculatorDetermine your selling price by applying a markup percentage to your cost. See the profit per unit a...
Fraction CalculatorPerform arithmetic operations on fractions including addition, subtraction, multiplication, and divi...
Square Footage CalculatorCalculate the area in square feet for rectangles, circles, and triangles. Useful for flooring, paint...
Concrete CalculatorCalculate the volume of concrete needed for your project in cubic yards and estimate the number of b...
Paint CalculatorEstimate how many gallons of paint you need based on room dimensions, number of coats, and window/do...
Electricity Cost CalculatorEstimate the electricity cost of running any appliance or device based on its wattage, hours of use,...
Gas Mileage CalculatorCalculate your vehicle's gas mileage in MPG and estimate fuel costs for trips based on distance, fue...
Love CalculatorA fun love compatibility calculator. Enter two names and get a match score. For entertainment purpos...
Random Number GeneratorGenerate random numbers within a specified range. Supports integers and decimals for various applica...
Restaurant Tip CalculatorCalculate tip amount and total bill for restaurants. Split between multiple people with custom tip p...
Mulch CalculatorCalculate the amount of mulch needed for your landscaping project based on area and desired depth....
Gravel CalculatorCalculate gravel needed in cubic yards and tons for driveways, paths, patios, and landscaping....
Tile CalculatorCalculate the number of tiles needed for your project including waste factor for cutting and breakag...
BTU CalculatorCalculate the BTU capacity needed for heating or cooling a room based on square footage and environm...
Deck Cost CalculatorEstimate the total cost to build a deck based on dimensions, material choice, and whether you hire a...
Cubic Yard CalculatorCubic Yard Calculator...
Baby Name GeneratorBaby Name Generator...
Fence CalculatorFence Calculator...
Drywall CalculatorDrywall Calculator...
Roofing CalculatorRoofing Calculator...
Carpet CalculatorCarpet Calculator...
Pool Volume CalculatorPool Volume Calculator...
Lawn Fertilizer CalculatorLawn Fertilizer Calculator...
Zodiac Compatibility CalculatorZodiac Compatibility Calculator...
Numerology CalculatorNumerology Calculator...
Chinese Zodiac CalculatorChinese Zodiac Calculator...
YouTube Money CalculatorFree youtube money calculator with instant results....
YouTube CPM CalculatorFree youtube cpm calculator with instant results....
TikTok Money CalculatorFree tiktok money calculator with instant results....
TikTok Engagement Rate CalculatorFree tiktok engagement rate calculator with instant results....
Instagram Engagement Rate CalculatorFree instagram engagement rate calculator with instant results....
Twitch Revenue CalculatorFree twitch revenue calculator with instant results....
Podcast Revenue CalculatorFree podcast revenue calculator with instant results....
Substack Revenue CalculatorFree substack revenue calculator with instant results....
Patreon Revenue CalculatorFree patreon revenue calculator with instant results....
Etsy Fee CalculatorFree etsy fee calculator with instant results....
Amazon FBA Fee CalculatorFree amazon fba fee calculator with instant results....
Influencer Rate CalculatorFree influencer rate calculator with instant results....
Affiliate Commission CalculatorFree affiliate commission calculator with instant results....
Newsletter Revenue CalculatorFree newsletter revenue calculator with instant results....
EV vs Gas Cost CalculatorFree ev vs gas cost calculator with instant results....
EV Charging Cost CalculatorFree ev charging cost calculator with instant results....
EV Range CalculatorFree ev range calculator with instant results....
EV Battery Degradation CalculatorFree ev battery degradation calculator with instant results....
Solar Panel ROI CalculatorFree solar panel roi calculator with instant results....
Solar System Size CalculatorFree solar system size calculator with instant results....
Heat Pump vs Furnace CalculatorFree heat pump vs furnace calculator with instant results....
Carbon Footprint CalculatorFree carbon footprint calculator with instant results....
Home Battery Storage CalculatorFree home battery storage calculator with instant results....
Energy Star Savings CalculatorFree energy star savings calculator with instant results....
Home Energy Audit CalculatorFree home energy audit calculator with instant results....
Cost of Living ComparisonFree cost of living comparison with instant results....
Relocation Cost CalculatorFree relocation cost calculator with instant results....
Coworking vs Home Office CalculatorFree coworking vs home office calculator with instant results....
Digital Nomad Visa CalculatorFree digital nomad visa calculator with instant results....
TikTok Engagement Rate CalculatorCalculate your TikTok engagement rate based on likes, comments, shares, and views. Compare with indu...
Instagram Engagement Rate CalculatorCalculate your Instagram engagement rate from likes, comments, and followers. See how you compare to...
Patreon Income CalculatorCalculate your potential Patreon earnings based on tier pricing, patron count, and Patreon fees....
Print-on-Demand Profit CalculatorCalculate your profit margin selling on Redbubble, Printful, Teespring, and other POD platforms....
Affiliate Commission CalculatorCalculate expected affiliate marketing income based on traffic, conversion rate, and commission stru...
Newsletter Monetization CalculatorCalculate newsletter revenue from sponsorships, paid subscriptions, and affiliate links based on sub...
EV vs Gas Cost CalculatorCompare the total cost of owning an electric vehicle vs gas car over 5, 10, and 15 years including f...
Solar Payback CalculatorCalculate how many years until your solar panels pay for themselves after incentives and energy savi...
Home Battery Storage CalculatorCalculate the ROI of home battery storage based on electricity rates, solar production, and time-of-...
Betting Odds CalculatorBetting Odds Calculator — free online tool....
Parlay CalculatorParlay Calculator — free online tool....
Poker Odds CalculatorPoker Odds Calculator — free online tool....
Lottery Odds CalculatorLottery Odds Calculator — free online tool....
Soil CalculatorSoil Calculator — free online tool....
Sand CalculatorSand Calculator — free online tool....
Paver CalculatorPaver Calculator — free online tool....
Stair CalculatorStair Calculator — free online tool....
Asphalt CalculatorAsphalt Calculator — free online tool....
Board Foot CalculatorBoard Foot Calculator — free online tool....
Retaining Wall CalculatorRetaining Wall Calculator — free online tool....
Wire Size CalculatorWire Size Calculator — free online tool....
Voltage Drop CalculatorVoltage Drop Calculator — free online tool....
Ohm's Law CalculatorOhm's Law Calculator — free online tool....
eBay Fee CalculatoreBay Fee Calculator — free online tool....
Spotify Royalty CalculatorSpotify Royalty Calculator — free online tool....
Speed Distance Time CalculatorSpeed Distance Time Calculator — free online tool....
CFM CalculatorCFM Calculator — free online tool....
YouTube Shorts Revenue CalculatorYouTube Shorts Revenue Calculator — free online tool....
Gumroad Fee CalculatorGumroad Fee Calculator — free online tool....
Brand Deal Minimum CalculatorBrand Deal Minimum Calculator — free online tool....
Merch Profit CalculatorMerch Profit Calculator — free online tool....
TikTok Shop Fee CalculatorTikTok Shop Fee Calculator — free online tool....
Shipping Cost EstimatorShipping Cost Estimator — free online tool....
EV Home Charger Install Cost CalculatorEV Home Charger Install Cost Calculator — free online tool....
EV Road Trip Cost CalculatorEV Road Trip Cost Calculator — free online tool....
Hybrid vs Full EV CalculatorHybrid vs Full EV Calculator — free online tool....
EV Battery Replacement Cost CalculatorEV Battery Replacement Cost Calculator — free online tool....
Home Energy Audit Savings CalculatorHome Energy Audit Savings Calculator — free online tool....
Fish Tank Cost CalculatorFish Tank Cost Calculator — free online tool....
Concrete Volume CalculatorConcrete Volume Calculator — free online tool....
Cubic Feet CalculatorCubic Feet Calculator — free online tool....
Pipe Size CalculatorPipe Size Calculator — free online tool....
Flow Rate CalculatorFlow Rate Calculator — free online tool....
Heat Loss CalculatorHeat Loss Calculator — free online tool....
LED Resistor CalculatorLED Resistor Calculator — free online tool....
Group Trip Cost SplitterGroup Trip Cost Splitter....
X/Twitter Engagement CalculatorX/Twitter Engagement Calculator....
LinkedIn Post Reach EstimatorLinkedIn Post Reach Estimator....
Pinterest Traffic EstimatorPinterest Traffic Estimator....
Hashtag Reach EstimatorHashtag Reach Estimator....
Viral Post Probability CalculatorViral Post Probability Calculator....
Tipping Guide CalculatorTipping Guide Calculator....
Paint Area CalculatorPaint Area Calculator....
Insulation CalculatorInsulation Calculator....
Gutter CalculatorGutter Calculator....
Window Replacement CostWindow Replacement Cost....
Siding Cost CalculatorSiding Cost Calculator....
Flooring Cost CalculatorFlooring Cost Calculator....
Countertop Cost CalculatorCountertop Cost Calculator....
Shed/Outbuilding Cost CalculatorShed/Outbuilding Cost Calculator....
HVAC System Cost CalculatorHVAC System Cost Calculator....
Water Heater Cost CalculatorWater Heater Cost Calculator....
Reselling/Flipping Profit CalculatorReselling/Flipping Profit Calculator....
Percentage Increase CalculatorPercentage Increase Calculator....
Percentage Decrease CalculatorPercentage Decrease Calculator....
Fraction to Percent ConverterFraction to Percent Converter....
Decimal to Fraction ConverterDecimal to Fraction Converter....
Ratio CalculatorRatio Calculator....
Average CalculatorAverage Calculator....
Rounding CalculatorRounding Calculator....
Random Name PickerRandom Name Picker....
Electricity Bill CalculatorElectricity Bill Calculator....
Lawn Mowing Time CalculatorLawn Mowing Time Calculator....
Pool Chemical CalculatorPool Chemical Calculator....
Bathroom Remodel Cost CalculatorBathroom Remodel Cost Calculator....
Kitchen Remodel Cost CalculatorKitchen Remodel Cost Calculator....
Snow Removal Cost CalculatorSnow Removal Cost Calculator....
Pressure Washer Time CalculatorPressure Washer Time Calculator....
Paint Drying Time CalculatorPaint Drying Time Calculator....
Curtain Size CalculatorCurtain Size Calculator....
Wallpaper CalculatorWallpaper Calculator....
Fence Cost Per Foot CalculatorFence Cost Per Foot Calculator....
Grass Seed CalculatorGrass Seed Calculator....
Propane Usage CalculatorPropane Usage Calculator....
Firewood CalculatorFirewood Calculator....
Generator Size CalculatorGenerator Size Calculator....
Rainwater Collection CalculatorRainwater Collection Calculator....
Septic Tank Size CalculatorSeptic Tank Size Calculator....
How Many Solar Panels CalculatorHow Many Solar Panels Calculator....
Window Blinds Size CalculatorWindow Blinds Size Calculator....
Gas Cost for a TripGas Cost for a Trip....
Gift Card Discount ValueGift Card Discount Value....
Coupon Savings CalculatorCoupon Savings Calculator....
Drive Time CalculatorDrive Time Calculator....
Snow Day Probability CalculatorSnow Day Probability Calculator....
Pizza Party CalculatorPizza Party Calculator....
Paint Mixing Ratio CalculatorPaint Mixing Ratio Calculator....
Daily Screen Time Cost CalculatorDaily Screen Time Cost Calculator....
Concrete Slab CalculatorConcrete Slab Calculator....
How Many Stamps CalculatorHow Many Stamps Calculator....
Window AC Running Cost CalculatorWindow AC Running Cost Calculator....
Rain Garden Size CalculatorRain Garden Size Calculator....
Appliance Energy Cost CalculatorAppliance Energy Cost Calculator....
T-Shirt Size CalculatorT-Shirt Size Calculator....
Home Electricity Usage MonitorHome Electricity Usage Monitor....
Fast, accurate calculators for finance, work, tech, and everyday math. Clear formulas and instant answers.
Browse 600+ free online calculators for finance, math, health, tech, business, education, salary, time, and unit conversions. Instant, accurate results with formulas and worked examples.