Calculators
Browse 84 calculators. Choose a tool to get started.
401(k) Calculator
Project your 401(k) with employer match, year by year.
AC BTU Calculator
Find the right AC size in BTU for any room — no more guessing.
ACA Subsidy Calculator
Estimate your 2026 Obamacare premium tax credit
Age Calculator
Your exact age in years, months and days.
Amortization Calculator
See every payment of your loan, principal vs interest.
Auto Loan Calculator
Monthly car payment, total interest & cost with term comparison.
Bill Split Calculator
Split the check fairly with tax and tip
Black Friday Budget Planner
Stay on budget through Black Friday deals
BMI Calculator
Calculate your BMI.
Body Fat Percentage Calculator
Estimate body fat % with the U.S. Navy tape-measure method, plus fat vs. lean mass.
Bonus Tax Calculator
Your bonus after IRS withholding
Bra Size Calculator
Find your true US bra size in 2 steps
Calories Burned Calculator
See how many calories walking, running, cycling, and more burn for your weight and workout time.
Capital Gains Tax Calculator
Estimate the federal tax on your investment gains.
Cat Age Calculator
Your cat’s age in human years
Christmas Budget Planner
Plan gifts & holiday spending in USD
Christmas Light Calculator
Light counts for trees and rooflines
Closing Cost Calculator
Itemized closing costs and total cash to close for any home purchase.
Coffee to Water Ratio Calculator
Perfect coffee dose for every brew method
Compound Interest Calculator
Watch your savings grow over the years.
Concrete Calculator
Cubic yards, bag counts and cost for any concrete job.
Updated · 8 NovCountdown Timer
Live countdown to any date with shareable link.
Daycare Cost Calculator
Compare weekly, monthly and annual childcare costs by state.
Debt Payoff Calculator
Debt-free date + interest for snowball vs avalanche strategies.
Diaper Cost Calculator
Project diaper spend: disposable vs cloth
Discount Calculator
Sale prices, percent off, stacked discounts and savings.
Dog Age Calculator
Dog years to human years with size-adjusted vet formulas.
Dog Chocolate Toxicity Calculator
Is that chocolate dangerous for your dog? Instant risk check.
Emergency Fund Calculator
Your 3, 6, and 12-month targets
Federal Income Tax Calculator
Estimate your 2026 federal tax by bracket, with marginal and effective rates and after-tax income.
Final Grade Calculator
Find the final exam score you need.
Firewood Calculator
How many cords of firewood for winter
Flooring Calculator
Calculate square feet, boxes, and material cost for any flooring project.
FSA Contribution Calculator
Pick your open-enrollment FSA amount
Fuel Cost Calculator
Figure out exactly what a trip or commute costs in gas.
Full Retirement Age Calculator
Find your SSA full retirement age and estimated benefits at 62, full age, and 70.
Gift Wrap Calculator
How much wrapping paper to buy
GPA Calculator
Semester & cumulative GPA, 4.0 scale.
Halloween Candy Calculator
Never run out of candy on Halloween night
HDHP vs PPO Calculator
Compare health plans and find your break-even point
Heat Index Calculator
Enter temperature and humidity to see what the heat really feels like, with NWS danger levels.
Holiday Pay Calculator
Holiday premium pay at 1.5x or 2x
Hourly to Salary Calculator
Convert hourly wages to annual salary instantly.
HSA Contribution Calculator
Max 2026 HSA limits and your tax savings
Ingredient Substitution Calculator
Find exact swaps for missing baking ingredients with US measures.
Macro Calculator
Daily protein, carbs & fat targets
Mortgage Calculator
Estimate your monthly payment.
Moving Cost Calculator
Estimate DIY vs full-service moving costs for any home size.
Mulch Calculator
Cubic yards, bag counts, and cost for your mulch project.
One Rep Max Calculator
Estimate your 1RM — Epley, Brzycki, Lombardi + % table.
Online Stopwatch
Millisecond-precision stopwatch with unlimited lap times.
Overtime Pay Calculator
Time-and-a-half and double-time pay math
Ovulation Calculator
Find your fertile window and ovulation day in seconds.
Paint Calculator
Calculate how much paint you need for any room, in seconds.
Party Drink Calculator
Exactly how much to buy for your party
Pay Raise Calculator
Find your new salary after any raise, in every pay period.
Paycheck Calculator
Estimate your take-home pay after US taxes.
Percentage Calculator
X% of Y, discounts, tips and percent change.
Pomodoro Timer
Stay focused with 25-minute work sprints, short breaks, and a long break every 4 sessions.
Pregnancy Due Date Calculator
Estimate your baby’s due date.
Profit Margin Calculator
Margin, markup & profit in one place
Property Tax Calculator
Estimate your annual property tax and monthly escrow.
Reaction Time Test
Click when the screen turns green and measure your reflexes over 5 trials.
Recipe Scaling Calculator
Double or halve any recipe exactly
Rent Affordability Calculator
Enter your income and see the rent range you can actually afford, with landlord approval checks.
Rent vs Buy Calculator
Compare renting against buying — mortgage, taxes, insurance, HOA, and upkeep — and find your break-even year.
Road Trip Cost Calculator
Estimate gas, tolls, hotels and food for your next road trip.
Salary to Hourly Calculator
Convert annual salary to an hourly wage.
Sales Tax Calculator
Calculate US sales tax by state — forward and reverse tax modes included.
Self-Employment Tax Calculator
Work out the SE tax on your freelance or 1099 income.
Sleep Cycle Calculator
Best bedtime or wake-up time based on 90-min sleep cycles.
State Income Tax Calculator
2026 federal + state tax and take-home pay
Student Loan Payoff Calculator
Find your debt-free date with extra payments.
Target Heart Rate Zone Calculator
Find your personalized fat burn, cardio, and peak heart rate zones in BPM.
TDEE Calculator
Find your daily calorie needs for cutting, maintaining or bulking — free, no signup.
Thanksgiving Dinner Timeline Planner
Minute-by-minute Thanksgiving cooking schedule
Thanksgiving Leftover Safety Timer
USDA eat-by dates for every dish
Thanksgiving Side Dish Calculator
Exact side-dish portions per guest
Thanksgiving Turkey Calculator
Turkey size, thaw time, and cook time in seconds
Time Card Calculator
Total your work hours, breaks, overtime and gross pay — free, no signup.
Tip Calculator
Split bills and calculate tips the American way.
Water Intake Calculator
Daily water intake from weight, activity level, and climate.
Wind Chill Calculator
See what the cold really feels like — official NWS wind chill plus frostbite risk time.
Zodiac Sign Calculator
Enter your birth date to find your Western sun sign and Chinese zodiac animal, with traits and compatibility.
New tools to try
Percentage Error Calculator
Compare measured and accepted values to calculate percentage error.
Fraction Calculator
Add, subtract, multiply and divide fractions with exact simplified results.
Long Division Calculator
Divide whole numbers with quotient, remainder and step-by-step working.
Standard Deviation Calculator
Calculate population and sample standard deviation with variance and mean.
Average Calculator
Find the mean, median, modes, range and sum of a number list.
Rounding Calculator
Round decimal numbers exactly to your chosen decimal place.
Percentage Difference Calculator
Compare two non-negative values using their average as the baseline.
Aspect Ratio Calculator
Find an aspect ratio and resize dimensions without distortion.
Download Time Calculator
Estimate transfer time from file size and connection speed.
Screen Size Calculator
Calculate display width, height, area and pixel density.
Syed Waleed