Your money.
Your decisions.
Our calculators.

Mortgage Calculator

Calculate monthly payments, total interest, and view amortization schedules.

Home Affordability

Find out how much house you can afford based on your income and debts.

Rent vs Buy

Compare the true cost of renting versus buying a home over time.

Refinance Calculator

See if refinancing saves you money. Find your break-even point.

Mortgage Payoff

Calculate how extra payments reduce your payoff time and total interest.

FHA Loan Calculator

Estimate FHA loan payments including MIP and down payment requirements.

VA Mortgage Calculator

Calculate VA loan payments with no down payment and no PMI.

Home Equity Loan

See how much you can borrow against your home equity.

HELOC Calculator

Estimate payments on a Home Equity Line of Credit.

Down Payment Calculator

Calculate how much you need for a down payment and how long to save.

Closing Cost Calculator

Estimate closing costs when buying or refinancing a home.

Rent Calculator

Determine how much rent you can afford based on your income.

Amortization Calculator

View a detailed amortization schedule for any loan.

Income Tax Calculator

Estimate your federal and state income tax liability.

Salary Calculator

Convert between annual, monthly, bi-weekly, weekly, and hourly pay.

Paycheck Calculator

Calculate your net paycheck after all withholdings and deductions.

Sales Tax Calculator

Calculate sales tax amounts by state and locality.

Self-Employment Tax

Estimate SE tax for freelancers, contractors, and business owners.

Capital Gains Tax

Calculate taxes on investment profits — short-term and long-term.

Estate Tax Calculator

Estimate federal estate tax on inherited wealth.

Marriage Tax Calculator

See how marriage affects your combined tax liability.

Hourly to Salary

Convert hourly wages to annual salary and vice versa.

Bonus Tax Calculator

Calculate how much of your bonus goes to taxes.

VAT Calculator

Calculate VAT-inclusive and VAT-exclusive prices for any tax rate.

Tax Bracket Calculator

Find your federal tax bracket, marginal rate, and effective rate.

Auto Loan Calculator

Calculate monthly car payments, total interest, and payoff schedule.

Credit Card Payoff

See how long to pay off your balance and how much interest you'll pay.

Debt Payoff Calculator

Create a debt payoff plan. Compare avalanche vs snowball methods.

Personal Loan

Calculate monthly payments and total cost of personal loans.

Student Loan Calculator

Estimate student loan payments and explore repayment plans.

Loan Calculator

General-purpose calculator for any type of fixed-rate loan.

Business Loan

Calculate business loan payments and compare financing options.

Debt Consolidation

See if consolidating your debts into one loan saves money.

Debt-to-Income Ratio

Calculate your DTI ratio and see how lenders evaluate your debt load.

Auto Lease Calculator

Compare leasing vs buying and estimate monthly lease payments.

Payment Calculator

Calculate the monthly payment on any loan amount.

Interest Calculator

Calculate simple or compound interest on any amount.

APR Calculator

Calculate the true Annual Percentage Rate including fees.

Boat Loan Calculator

Calculate monthly boat loan payments, total interest, and payoff schedule.

Lease Calculator

Calculate monthly lease payments based on price, residual value, and rate.

Repayment Calculator

Calculate loan repayment schedule with monthly payments and total interest.

Credit Card Calculator

Calculate how long to pay off credit card debt and total interest paid.

Cash Back vs Low Interest

Compare cash back rewards vs low interest rate financing.

Interest Rate Calculator

Calculate the interest rate on a loan from payment and term.

Retirement Calculator

Project your retirement savings and see if you're on track.

401(k) Calculator

Estimate your 401(k) balance with employer match and contributions.

Investment Calculator

Project growth of investments with compound interest over time.

Compound Interest

See the power of compound interest with regular contributions.

Roth IRA Calculator

Project tax-free growth in your Roth IRA account.

IRA Calculator

Compare Traditional and Roth IRA growth and tax benefits.

Social Security

Estimate your Social Security benefits at different retirement ages.

Pension Calculator

Estimate your pension payout based on years of service and salary.

Annuity Calculator

Calculate the future value of annuity payments.

RMD Calculator

Calculate Required Minimum Distributions from retirement accounts.

ROI Calculator

Calculate Return on Investment for any project or purchase.

Mutual Fund Calculator

Project mutual fund growth with fees and dividends.

Bond Calculator

Calculate bond yields, prices, and maturity values.

CD Calculator

Calculate Certificate of Deposit earnings at maturity.

Annuity Payout

Calculate monthly income from a lump sum annuity investment.

Average Return

Calculate compound annual growth rate (CAGR) of investments.

Finance Calculator

Solve for any variable in time value of money equations.

FIRE Calculator

Calculate your Financial Independence number and years to retire early.

Stock Profit Calculator

Calculate stock trading profit, loss, and return on investment.

Dividend Calculator

Calculate dividend yield, annual income, and projected growth.

Savings Calculator

Calculate how your savings grow over time with compound interest.

Cost of Living

Compare costs between cities and find equivalent salaries.

Budget Calculator

Create a monthly budget and track income vs expenses.

Inflation Calculator

See how inflation erodes purchasing power over time.

Emergency Fund

Calculate how much you need in an emergency savings fund.

Net Worth Calculator

Calculate your total net worth — assets minus liabilities.

Simple Interest

Calculate simple interest on savings or loans.

College Cost Calculator

Estimate the total cost of college and how much to save.

Tip Calculator

Calculate tips and split bills among groups.

Discount Calculator

Calculate savings from percentage or dollar discounts.

Currency Converter

Convert between currencies using live exchange rates.

Percent Off

Calculate the sale price and savings from a percentage discount.

Rental Property

Analyze rental property returns — cash flow, cap rate, and ROI.

Real Estate Calculator

Comprehensive real estate investment analysis tool.

Commission Calculator

Calculate sales commissions with tiered rate structures.

Profit Margin Calculator

Calculate gross, operating, and net profit margins.

Depreciation Calculator

Calculate asset depreciation using multiple methods.

IRR Calculator

Calculate Internal Rate of Return on investments.

Present Value

Calculate the present value of future cash flows.

Future Value

Calculate the future value of investments or savings.

Break-Even Calculator

Find how many units or dollars you need to break even.

Payback Period

Calculate how long it takes to recoup an investment.

BMI Calculator

Calculate your Body Mass Index to see if your weight is in a healthy range.

Calorie Calculator

Estimate daily calorie needs based on age, sex, height, weight, and activity.

Body Fat Calculator

Estimate body fat percentage using the U.S. Navy method.

BMR Calculator

Calculate your Basal Metabolic Rate using Mifflin-St Jeor formula.

Macro Calculator

Calculate optimal daily protein, carbs, and fat intake.

Ideal Weight

Find your ideal weight using Devine, Robinson, Miller, and Hamwi formulas.

TDEE Calculator

Calculate Total Daily Energy Expenditure for accurate calorie tracking.

Protein Calculator

Determine optimal daily protein intake based on weight and goals.

Fat Intake

Calculate recommended daily fat intake from calorie target.

Carbohydrate Calculator

Calculate remaining carb intake after protein and fat targets.

Lean Body Mass

Calculate lean mass and fat mass from weight and body fat percentage.

Healthy Weight

Find your healthy weight range based on height and BMI guidelines.

Calories Burned

Estimate calories burned during various physical activities.

One Rep Max

Estimate your 1RM using Brzycki, Epley, and Lander formulas.

Target Heart Rate

Calculate heart rate zones for optimal training.

Body Type

Determine your body type — ectomorph, mesomorph, or endomorph.

Body Surface Area

Calculate BSA using Du Bois and Mosteller formulas.

BAC Calculator

Estimate blood alcohol content based on drinks, weight, and time.

Pace Calculator

Calculate running or walking pace per mile and per kilometer.

Army Body Fat

Estimate body fat using the DoD tape test method.

Overweight Calculator

Find out how many pounds above or below a healthy weight.

Pregnancy Calculator

Calculate due date, current week, and trimester from last period.

Ovulation Calculator

Calculate ovulation date and fertile window from cycle data.

Pregnancy Weight Gain

Calculate recommended weight gain during pregnancy by BMI.

GFR Calculator

Estimate glomerular filtration rate to assess kidney function.

Due Date Calculator

Calculate your estimated due date and current week of pregnancy.

Conception Calculator

Estimate conception date and window from due date or birth date.

Period Calculator

Predict next period dates, fertile windows, and ovulation.

Water Intake

Calculate recommended daily water intake based on weight and activity.

Waist-to-Hip Ratio

Calculate WHR and assess health risk from fat distribution.

VO2 Max Calculator

Estimate cardiovascular fitness with Cooper or Rockport tests.

Pregnancy Weeks

Track pregnancy week by week with milestones and baby size.

Percentage Calculator

Find X% of a value, what percentage one number is of another, and more.

Percent Error

Calculate percent error between experimental and actual values.

Standard Deviation

Calculate standard deviation, variance, and mean for a dataset.

Average Calculator

Calculate mean, sum, count, minimum, and maximum.

Mean Median Mode Range

Find mean, median, mode, and range of a dataset.

Z-Score Calculator

Calculate z-score and probability within a normal distribution.

Confidence Interval

Calculate confidence interval for a population mean.

Sample Size

Determine required sample size for surveys and studies.

P-value Calculator

Calculate p-value from z-scores and t-scores.

Probability Calculator

Calculate probability, odds, and complementary probability.

Statistics Calculator

Get complete descriptive statistics for a dataset.

Permutation & Combination

Calculate permutations (nPr) and combinations (nCr).

Ratio Calculator

Simplify ratios and solve proportions.

Half-Life Calculator

Calculate remaining amount after exponential decay.

Exponent Calculator

Calculate the result of raising a base to any power.

Log Calculator

Calculate logarithms with any base — natural, common, binary.

Root Calculator

Calculate square root, cube root, or any nth root.

Scientific Notation

Convert numbers to and from scientific notation.

Number Sequence

Generate arithmetic or geometric sequences.

Quadratic Formula

Solve ax² + bx + c = 0 using the quadratic formula.

Slope Calculator

Calculate slope, y-intercept, and line equation from two points.

Fraction Calculator

Add, subtract, multiply, or divide fractions.

Area Calculator

Calculate area of rectangles, circles, triangles, and more.

Volume Calculator

Calculate volume of cubes, spheres, cylinders, and cones.

Surface Area

Calculate surface area of 3D shapes.

Circle Calculator

Calculate diameter, circumference, and area from radius.

Triangle Calculator

Calculate triangle area, perimeter, and angles.

Right Triangle

Calculate hypotenuse, area, and angles of right triangles.

Pythagorean Theorem

Apply a² + b² = c² to find missing sides.

Distance Calculator

Calculate distance and midpoint between two points.

LCM Calculator

Find the Least Common Multiple of two or three numbers.

GCF Calculator

Find the Greatest Common Factor of two or three numbers.

Factor Calculator

Find all factors and prime factorization of a number.

Prime Factorization

Find the prime factorization of any number.

Rounding Calculator

Round numbers to any decimal place.

Long Division

Perform long division with step-by-step work shown.

Random Number Generator

Generate random numbers within a specified range.

Binary Calculator

Perform arithmetic on binary numbers with base conversions.

Hex Calculator

Arithmetic with decimal, hex, binary, and octal conversions.

Matrix Calculator

Calculate determinant, inverse, transpose, and eigenvalues.

Significant Figures

Count sig figs and round to specified precision.

Age Calculator

Calculate your exact age in years, months, and days.

Date Calculator

Add or subtract days, months, and years from any date.

Time Calculator

Add or subtract time values in hours, minutes, and seconds.

Hours Calculator

Calculate hours and minutes worked between start and end times.

Time Duration

Find the exact duration between two dates.

Day Counter

Count days, weeks, weekdays, and weekend days between dates.

Day of the Week

Find what day of the week any date falls on.

Time Zone

Convert time between different time zones worldwide.

Sleep Calculator

Calculate sleep duration and cycles for better rest.

GPA Calculator

Calculate your GPA on the 4.0 scale from grades and credits.

Grade Calculator

Calculate weighted average grade from assignment scores.

Concrete Calculator

Calculate concrete needed in cubic yards and bags.

Square Footage

Calculate the square footage of any area.

Roofing Calculator

Calculate roof area, squares, and shingles needed.

Tile Calculator

Calculate tiles needed including grout gaps and waste.

Mulch Calculator

Calculate mulch needed for landscaping projects.

Gravel Calculator

Calculate gravel needed in cubic yards and tons.

Stair Calculator

Calculate steps, riser height, and stair angle.

Fuel Cost

Calculate fuel needed and total cost for any trip.

Gas Mileage

Calculate your actual MPG from miles and gallons.

Mileage Calculator

Calculate IRS mileage reimbursement.

Speed Calculator

Calculate speed from distance and time.

Tire Size

Calculate and compare tire sizes.

Density Calculator

Calculate density from mass and volume.

Molarity Calculator

Calculate molar concentration of a solution.

Horsepower Calculator

Calculate HP from torque and RPM.

Wind Chill

Calculate wind chill temperature and frostbite risk.

Heat Index

Calculate feels-like temperature from heat and humidity.

Dew Point

Calculate dew point from temperature and humidity.

Voltage Drop

Calculate voltage drop across a wire run.

Ohm's Law

Calculate voltage, current, resistance, or power.

Electricity Cost

Calculate electricity cost of running any appliance.

BTU Calculator

Calculate BTUs needed to heat or cool a room.

Resistor Color Code

Decode resistor color codes to find resistance.

Password Generator

Generate strong, random passwords.

Bandwidth Calculator

Calculate download time from file size and speed.

Shoe Size Conversion

Convert shoe sizes between US, EU, UK, and CM.

Unit Converter

Convert between common units of length, weight, temp, volume.

Roman Numeral Converter

Convert numbers to and from Roman numerals.

Dice Roller

Roll virtual dice with customizable sides and count.

Paint Calculator

Calculate how much paint you need for a room.

Fence Calculator

Estimate posts, rails, and pickets for a fence project.

Pool Volume

Calculate swimming pool volume in gallons.

Soil Calculator

Calculate soil needed in cubic yards and bags.

Asphalt Calculator

Estimate asphalt volume and weight for paving projects.

Deck Calculator

Estimate decking boards, joists, and screws needed.

Force Calculator

Calculate force, mass, or acceleration using F = ma.

Pressure Calculator

Calculate pressure, force, or area using P = F/A.

Molecular Weight

Look up molecular weight and composition of common molecules.

Height Calculator

Predict a child's adult height using the mid-parent method.

Dog Age Calculator

Convert dog age to human years by breed size.

Wallpaper Calculator

Calculate wallpaper rolls needed for a room.

IP Subnet Calculator

Calculate subnet mask, network, and host range from CIDR.

Color Converter

Convert colors between RGB, Hex, HSL, HSV, and CMYK.

Word Counter

Estimate reading time, speaking time, and page count.

Screen Size

Calculate screen width and height from diagonal and aspect ratio.

Typing Speed

Calculate WPM, accuracy, and typing skill level.

Cooking Converter

Convert between cups, tablespoons, mL, grams, and more.

Time Card Calculator

Calculate weekly hours, regular and overtime pay.

Mass Calculator

Calculate mass, density, or volume using m = density × volume.

Weight on Planets

Discover your weight on every planet in the solar system.

GDP Calculator

Calculate GDP using the expenditure approach: C + I + G + (X-M).

Engine Horsepower

Estimate engine HP from displacement, RPM, and efficiency.