🛠️ All Free Calculators
Every calculator, organized by category — find what you need in seconds.
Tip Calculator
Calculate tip amount and split the bill between any number of people.
%Percentage Calculator
Three calculators in one: percentage of a number, percentage of total, and percentage change.
📈Compound Interest Calculator
See how your money grows with compound interest and regular monthly contributions.
💵Salary ↔ Hourly Wage Converter
Convert annual salary to hourly, weekly, biweekly, and monthly pay, or vice versa.
🏦401(k) Calculator
Estimate your retirement savings using real 2026 IRS contribution limits.
🧾2026 Federal Tax Bracket Calculator
Calculate your federal income tax using official 2026 IRS brackets and standard deduction.
🏠Mortgage Calculator
Estimate your monthly mortgage payment including taxes, insurance, and PMI.
🚗Auto Loan Calculator
Estimate your monthly car payment and total interest for new or used vehicles.
🧮Sales Tax Calculator
Official 2026 sales tax rates for all 50 states and DC.
💰Paycheck Calculator (2026)
Estimate your take-home pay using official 2026 federal tax brackets and FICA rates.
🏷️Discount Calculator
Find the sale price, or work out what discount you're actually getting.
💳Loan Calculator (EMI)
Works for any loan type — find your monthly payment and total interest.
🧾VAT Calculator
Add or remove VAT/GST from a price — works for any country's rate.
🎯Debt Payoff Calculator
Compare the Snowball and Avalanche payoff strategies side by side.
🎯Savings Goal Calculator
Find out how much to save each month to hit your target.
💼Freelance Hourly Rate Calculator
Find the hourly rate you actually need to charge — it's not salary ÷ hours.
🧾Self-Employment Tax Calculator
Estimate your Social Security and Medicare tax as a freelancer (2026 rates).
🛍️Online Seller Fee & Profit Calculator
See exactly what Etsy, eBay, or Amazon take — and what you keep.
📊Break-Even Point Calculator
How many units do you need to sell before your side business profits?
🏷️Markup & Margin Calculator
Find your selling price, or check your real profit margin.
🔥FIRE Number Calculator
Financial Independence, Retire Early — find your number and timeline.
⏳Rule of 72 Calculator
A quick shortcut for estimating how fast your money doubles.
📈CAGR Calculator
Find your investment's true annualized return.
🛟Emergency Fund Calculator
How much should you have saved for the unexpected?
💵Dividend Yield Calculator
Estimate your passive income from dividend-paying investments.
🕐Time Card Calculator
Enter your week's clock times to get total hours and estimated pay.
⏱️Overtime Pay Calculator
See your regular pay, overtime pay, and total for the week.
🥧50/30/20 Budget Calculator
See how to split your take-home pay between needs, wants, and savings.
⛽Mileage & Gas Cost Calculator
Find the true fuel cost of any trip — great for commuters and gig drivers.
📺Subscription Cost Calculator
Add up your subscriptions to see what they really cost per year.
📈Raise Calculator
Find your new pay after a raise — by percentage or dollar amount.
🧾Bill Split Calculator
Split rent, groceries, or any shared bill unevenly by percentage.
⏳Late Payment Interest Calculator
See exactly how much late fee to charge an overdue invoice.
🤝Tip Pool Calculator
Split a shared tip pool fairly by hours worked, or evenly.
🚗IRS Mileage Reimbursement Calculator
Find your reimbursement or deduction using the current official IRS rate.
🔢Minutes to Decimal Hours Converter
Convert HH:MM time to payroll decimal hours, in either direction.
🕓8-Hour Shift Calculator
Find exactly when your shift ends — including overnight shifts.
📅Amortization Schedule Calculator
See your full year-by-year loan breakdown and what an extra payment saves.
🏡Home Affordability Calculator
Find the home price range you can realistically afford.
🏘️Rent vs. Buy Calculator
Compare the true long-term cost of renting versus buying.
💎Net Worth Calculator
What you own, minus what you owe — your financial progress number.
⚖️Debt-to-Income (DTI) Ratio Calculator
The same ratio lenders use to evaluate your loan application.
💳Credit Card Payoff Calculator
See how long minimum payments really take — and what a fixed payment saves.
📊Credit Utilization Calculator
A key factor in your credit score, right after payment history.
🚙Car Affordability Calculator
Find the car price that fits your budget without financial strain.
🏦Down Payment Savings Calculator
Find how much to save monthly to hit your home down payment goal.
🎓Student Loan Payoff Calculator
See your payoff timeline and what an extra payment saves you.
🏛️Roth vs. Traditional IRA Calculator
Compare the after-tax retirement value of both account types.
🩺HSA Contribution Calculator
Find your maximum allowed HSA contribution and estimated tax savings.
🎓529 College Savings Plan Calculator
See how your monthly contributions could grow, tax-free, for college.
🏡Closing Costs Calculator
Estimate the one-time costs due when you close on a home purchase.
🔑Home Equity Calculator
Find your current home equity and estimated borrowing capacity.
📊Effective vs. Marginal Tax Rate Calculator
See exactly how your income is taxed bracket by bracket.
📈Capital Gains Tax Calculator
Compare short-term vs. long-term capital gains tax.
💹Simple Interest Calculator
Interest and total amount for any principal, rate, and time — any currency.
📐ROI Calculator
Return on investment, net gain, and annualized ROI — any currency.
🎈Inflation Calculator
Future cost and buying power of money for any inflation rate.
⚡Electricity Cost Calculator
Running cost of any appliance per day, month, and year.
🤝Commission Calculator
Flat or tiered sales commission, and sales needed for a target.
⚖️Flat vs. Reducing Balance Rate Calculator
Compare flat and reducing-balance loans and find the true effective rate.
📈APY Calculator
Convert an interest rate to APY for any compounding frequency, and see a year’s interest.
🏦CD Calculator
See what a certificate of deposit is worth at maturity, with APY and total interest.
🧾APR Calculator
Find a loan’s true APR including origination and other upfront fees.
🏖️Retirement Withdrawal Calculator
See how long your savings last with yearly withdrawals, growth, and inflation.
🔄Mortgage Refinance Calculator
Compare your current mortgage with a refinance: new payment, savings, and break-even month.
🎯Mortgage Points Calculator
See what discount points cost, how much they save each month, and the break-even point.
🏠Rent Affordability Calculator
How much rent you can afford by income, using the 30% rule and a budget-based check.
🏛️Property Tax Calculator
Estimate yearly and monthly property tax from assessed value, rate, or mill levy.
🚗Car Lease Calculator
Estimate a monthly car lease payment from price, residual value, and money factor.
⚖️Loan Comparison Calculator
Compare two loan offers side by side: payment, total interest, fees, and total cost.
🧩Debt Consolidation Calculator
Compare your current debts with one consolidation loan: payment, interest, and time.
💳Balance Transfer Calculator
See whether a balance transfer saves money after the fee and the promotional period.
📊Stock Average Cost Calculator
Average cost per share across multiple buys, profit/loss, and shares needed for a target average.
💹Stock Profit Calculator
Profit or loss on a stock trade after commissions, return percentage, and break-even price.
🗓️Quarterly Estimated Tax Calculator
Estimate Form 1040-ES payments for freelancers: income + self-employment tax, safe harbor and due dates.
🧓Social Security Claiming Age Calculator
Compare your benefit at 62, full retirement age and 70, and find your break-even age.
BMI Calculator
Calculate your Body Mass Index in metric or imperial units.
🔥Calorie Calculator (TDEE)
Find your daily calorie needs using the Mifflin-St Jeor formula.
👶Pregnancy Due Date Calculator
Estimate your due date based on your last menstrual period.
📏Body Fat Percentage Calculator
Estimate your body fat using the U.S. Navy circumference method.
😴Sleep Calculator
Best bedtime or wake-up time based on 90-minute sleep cycles.
🎯Ideal Weight Calculator
Healthy weight range for your height from four formulas and BMI.
💧Water Intake Calculator
Estimate your daily drinking water based on weight, activity, and climate.
❤️Heart Rate Zone Calculator
Estimated maximum heart rate and five training zones.
🏃Running Pace Calculator
Pace, finish time, or distance in km or miles, 5K to marathon.
🏋️One Rep Max (1RM) Calculator
Estimate your 1RM from any set and plan training weights.
🥚Protein Intake Calculator
Daily protein needs in grams for your weight and goal.
🌸Ovulation Calculator
Estimated fertile window, ovulation date, and next period.
🔥Calories Burned Calculator
Estimate calories burned by activity, body weight, and duration using MET values.
🥗Macro Calculator
Daily calories and protein, carb, and fat targets from your TDEE and goal.
GPA Calculator
Calculate your semester or cumulative GPA on the standard US 4.0 scale.
➗Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers, with steps.
📊Average Calculator (Mean, Median, Mode)
Get the mean, median, mode, range, and sum of any list of numbers.
📉Standard Deviation Calculator
Sample and population standard deviation and variance, with a step table.
📝Final Grade Calculator
Find the score you need on your final exam to reach your target grade.
🔢GCF & LCM Calculator
Greatest common factor and least common multiple, with prime factorizations.
➗Ratio Calculator
Simplify ratios, solve for a missing value, and scale ratios up or down.
📝Test Grade Calculator
Turn points into a percentage and letter grade, and see how many can be missed.
Age Calculator
Find your exact age in years, months, and days.
📅Date Calculator
Find days between two dates, or add/subtract days from a date.
🌍Time Zone Converter
Convert any date and time between world time zones, with daylight saving time handled automatically.
🗓️Meeting Planner (Time Zones)
Find the best meeting time across up to four time zones.
📆Week Number Calculator
ISO 8601 and US week numbers for any date, and the dates of any week.
Unit Converter
Convert length, weight, and temperature between metric and imperial units.
📝Word & Character Counter
Instant word count, character count, and estimated reading time.
🔐Random Password Generator
Generate strong, secure passwords — entirely in your browser.
🔳QR Code Generator
Turn any link or text into a downloadable QR code.
🔤Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, and more.
ⅫRoman Numeral Converter
Convert between numbers and Roman numerals in either direction.
💵Cash Counter
Enter your bills and coins to get an instant total.
🪖Military Time Converter
Convert between 12-hour and 24-hour (military) time instantly.
🎲Random Number Generator
Unbiased random numbers in any range, with or without repeats.
📐Square Footage Calculator
Square footage of rooms and shapes, with conversions to square meters and acres.
🏷️Unit Price Calculator
Compare products by price per ounce, gram, liter, or item to find the better deal.