Tools You Won't Find Anywhere Else
Real-problem calculators most sites don't offer — solar savings, job offers, true moving costs and more
Solar Panel Savings Calculator
Find your real savings, payback period, and 25-year solar ROI
NewJob Offer Comparison Calculator
Compare two offers side by side — salary, benefits, commute, COL
NewTrue Cost of Moving Calculator
The real total cost of moving — including fees most people forget
NewFreelance Rate Calculator
Find what to actually charge to hit your real income goal
NewWork From Home Savings Calculator
See exactly how much remote work saves vs commuting
NewFreelancer Tax Estimator
Estimate self-employment tax and quarterly payment amounts
NewFinance Calculators
Mortgage, loans, tips, savings — all the numbers that matter
Mortgage Calculator
Calculate monthly payments, total interest, and amortization schedule
Most PopularTip Calculator
Split bills and calculate tips instantly for any group size
Most PopularLoan Calculator
Find monthly payments for any personal, auto, or student loan
Compound Interest
See how your savings grow with compound interest over time
Retirement Calculator
Plan your retirement savings and see when you can retire
Credit Card Payoff
Find out how long to pay off your credit card debt
NewPercentage Calculator
Percentages, % change, increase/decrease, and reverse %
Most PopularDiscount Calculator
Find sale price and stack multiple discounts or coupons
Salary & Paycheck Calculator
Convert hourly to annual pay and estimate take-home income
NewSavings Goal Calculator
Find how much to save monthly to reach any financial goal
Mortgage Refinance Calculator
See if refinancing your mortgage will actually save you money
Home Affordability Calculator
Find how much house you can really afford based on income
Home Equity & HELOC Calculator
Estimate your home equity and HELOC borrowing power
Rent vs Buy Calculator
Compare the true long-term cost of renting vs buying
Closing Costs Calculator
Estimate all closing costs when buying or selling a home
Property Tax Estimator
Estimate annual property tax based on home value and location
Home Renovation ROI Calculator
See which home renovations actually pay off at resale
Car Loan Calculator
Calculate monthly payments and total interest on a car loan
Car Lease vs Buy Calculator
Compare leasing vs buying a car over time
Car Depreciation Calculator
See how much your car will be worth in the years ahead
401(k) Contribution Calculator
Project your 401(k) growth with employer match included
Roth IRA vs Traditional IRA
Compare tax savings between Roth and Traditional IRA
Social Security Benefits Estimator
Estimate your monthly Social Security retirement benefit
Break-Even Calculator
Find exactly how many units you need to sell to break even
Rental Cash Flow Calculator
See your monthly rental income after mortgage, taxes, and expenses
NewCar True Cost Calculator
Find the real cost of owning a car beyond the sticker price
NewFIRE Calculator
Find out when you can reach financial independence and retire early
NewEmergency Fund Calculator
Find out how much you need saved for a financial safety net
NewTax Calculators
Brackets, credits, and self-employment tax made simple
Federal Tax Bracket Calculator
See your federal tax bracket and effective tax rate
Capital Gains Tax Calculator
Estimate tax owed on short and long-term capital gains
Child Tax Credit Calculator
Calculate your Child Tax Credit based on income and dependents
W-2 vs 1099 Tax Comparison
Compare take-home pay as an employee vs contractor
LLC vs S-Corp Tax Savings
See how much an S-Corp election could save on self-employment tax
Freelancer Tax Estimator
Estimate quarterly self-employment taxes for freelancers
Work & Career Tools
Salary, offers, and freelance tools for your career
Salary & Paycheck Calculator
Convert hourly to annual pay and estimate take-home income
Job Offer Comparison Calculator
Compare two job offers side by side, including benefits
Freelance Rate Calculator
Find your ideal hourly rate as a freelancer or contractor
Severance Pay Estimator
Estimate severance pay based on tenure and company policy
Employee Cost Calculator
Find the true cost of an employee beyond their salary
Work Hours Calculator
Track and total work hours from clock-in and clock-out times
Work From Home Savings Calculator
See how much working from home saves you each month
Invoice Generator
Create and download professional invoices in seconds
Overtime Pay Calculator
Calculate your overtime earnings and total paycheck
NewBenefits & Insurance
HSA, FSA, COBRA, and life insurance calculators
HSA Contribution Calculator
See your HSA contribution limits and tax savings
FSA vs HSA Comparison Tool
Compare FSA and HSA accounts to pick the right one
COBRA Insurance Cost Estimator
Estimate monthly COBRA premiums after leaving a job
Life Insurance Needs Calculator
Find how much life insurance coverage you actually need
Education Calculators
529 plans, FAFSA, student loans, and GPA
529 College Savings Calculator
Project 529 plan growth for future college costs
FAFSA EFC / SAI Estimator
Estimate your FAFSA Expected Family Contribution / SAI
Student Loan Payoff Calculator
Build a payoff plan and see total interest on student loans
GPA to 4.0 Scale Calculator
Convert your grades to a 4.0 scale GPA instantly
Unit Converters
Length, weight, temperature, speed — convert anything instantly
Length Converter
Convert between meters, feet, inches, miles, kilometers and more
Most PopularWeight Converter
Convert kg to lbs, pounds to ounces, grams and more
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin instantly
Speed Converter
mph to km/h, knots to mph and all speed unit conversions
Area Converter
Square feet, square meters, acres, hectares and more
SEO & Text Tools
Word count, case converter, meta tags, and tools for writers and marketers
Word Counter
Count words, characters, sentences and reading time instantly
Most PopularCase Converter
Convert text to UPPERCASE, lowercase, Title Case and more
Character Counter
Count characters for Twitter, Instagram bios, SMS limits
Lorem Ipsum Generator
Generate placeholder text for websites and design mockups
Meta Tag Generator
Create SEO, Open Graph and Twitter Card tags with live preview
NewSlug Generator
Convert titles into clean, SEO-friendly URL slugs
Readability Checker
Analyze your text's reading ease and grade level
Developer Tools
JSON, colors, regex, and encoding tools for building things
JSON Formatter
Beautify, minify, and validate JSON with syntax highlighting
Most PopularColor Picker
Convert HEX, RGB, HSL and generate matching color palettes
Base64 Encoder/Decoder
Convert text and files to/from Base64 instantly
Regex Tester
Test regular expressions live with match highlighting
NewDate & Time Tools
Countdowns, date math, time zones, and work hour tracking
Countdown Timer
Count down to any date — deadlines, launches, holidays
Most PopularDate Difference Calculator
Find the exact days, weeks, months between two dates
Time Zone Converter
Compare times across cities for scheduling global meetings
NewWork Hours Calculator
Track weekly clock-in/out times and calculate pay
Health Calculators
BMI, calories, and everyday health math — quick and private
BMI Calculator
Calculate your Body Mass Index in metric or imperial units
Most PopularCalorie Calculator
Find your daily calorie needs based on activity and goals
Everyday Tools
QR codes, passwords, and quick calculations for daily life
QR Code Generator
Create QR codes for URLs, text, WiFi, or contact info
Most PopularPassword Generator
Generate strong, secure passwords with custom rules
Age Calculator
Find your exact age and days until your next birthday
Gas Cost Calculator
Estimate trip fuel cost based on distance and mpg
Mathematics Calculators
Arithmetic, algebra, geometry, trigonometry, statistics and more — 117 calculators with full step-by-step working
Percentage Calculator
Find percentages, increases, and decreases instantly
Quadratic Equation Solver
Solve ax²+bx+c=0 with full step-by-step working
NewGCD & LCM Calculator
Greatest common divisor and least common multiple
Fraction Operations Calculator
Add, subtract, multiply, and divide fractions
Slope & Line Equation Calculator
Find slope, intercept, and the full line equation
Circle Calculator
Area, circumference, radius, and diameter
Right Triangle Solver
Solve any right triangle with the Pythagorean theorem
Standard Deviation Calculator
Mean, variance, and standard deviation of a data set
View All Mathematics Tools
Browse the full suite of 100+ mathematics calculators
Science Calculators
Physics, chemistry, biology, astronomy and earth science — 102 calculators with full step-by-step working
Ohm’s Law Calculator
Find voltage, current, or resistance instantly
pH Calculator
Calculate pH, pOH, and H+ ion concentration
NewIdeal Gas Law Calculator
Solve PV=nRT for any of the four variables
Molarity Calculator
Find the molar concentration of a solution
Speed, Distance & Time Calculator
Solve for any one value given the other two
Kinetic Energy Calculator
Find kinetic energy from mass and velocity
Radioactive Half-Life Calculator
Calculate remaining quantity after decay
Density Calculator
Find density, mass, or volume of any material
View All Science Tools
Browse the full suite of 100+ science calculators
Home & Construction Calculators
Concrete, paint, flooring, roofing, framing and more — 101 calculators with full step-by-step working
Concrete Slab Volume Calculator
Find cubic yards of concrete needed for any slab
Paint Coverage Calculator
Estimate how many gallons of paint you need
NewTile Calculator
Calculate tiles needed including waste allowance
Roof Shingles Calculator
Estimate shingle bundles needed for your roof
Board Feet Calculator
Calculate board feet for any lumber project
Gravel & Aggregate Calculator
Find how much gravel or aggregate you need
Drywall Sheets Calculator
Calculate drywall sheets needed for any room
Fence Calculator
Estimate posts, rails, and materials for a fence
View All Construction Tools
Browse the full suite of 100+ construction calculators