All Calculators

Every CalculatorBoss tool in one place — 204 calculators across finance, health, math, and everyday life.

Finance (86)Health & Fitness (30)Math (39)Crypto & Trading (10)Other (48)

Finance 78

Loans, mortgages, credit, investing, tax and planning.

Payment incl. taxes, insurance & PMI, with schedule.

Monthly payment, total interest and full payoff schedule.

Car loan payment incl. trade-in and sales tax.

Estimate US federal tax using current IRS brackets.

Compound Interest

How savings grow with contributions & compounding.

Project your balance and income at retirement.

Hourly to annual, or gross to take-home pay.

Add tax to a price, or pull the pre-tax price out.

Convert currencies using live ECB reference rates.

Monthly contribution needed to hit a target.

Project your 401(k) balance at retirement with employer match.

Full payment schedule showing principal and interest by period.

Estimate the future value of regular annuity payments.

Find how much an annuity pays out over time.

Convert a loan's rate and fees into a true APR.

Estimate monthly lease payments and total lease cost.

Calculate the average annual return of an investment.

Monthly payment and total cost for a boat loan.

Find a bond's present value from its face value.

Plan monthly income against expenses by category.

Estimate payments and interest on a business loan.

Canadian Mortgage

Mortgage payments using Canadian semi-annual compounding rules.

Land Transfer Tax

Land transfer tax for all 10 Canadian provinces, incl. Toronto.

Cash Back Or Low Interest

Compare cash back vs. low APR — incl. trade-in and state sales tax rules.

CD maturity value with after-tax estimate and early-withdrawal penalty.

Project tuition costs, then see your 529 savings gap.

Solve for any value, or model a tiered commission plan.

Payoff time, minimum payment, and this cycle's interest charge.

Credit Card Payoff

Find how fast extra payments clear a card balance.

Crypto Profit / Loss

Exact P&L, ROI, breakeven price and fees.

Debt Consolidation

Compare combined debt payments vs. one consolidation loan.

Compare snowball vs. avalanche payoff strategies.

Calculate your debt-to-income ratio for loan qualifying.

Estimate asset value loss using straight-line or declining methods.

Add tax to a price, or pull the pre-tax price out.

Portfolio Allocation Calculator

See your drift from target and what to buy or sell.

Stock Average Price Calculator

Your weighted cost per share across every buy.

P/E Ratio Calculator

What you pay per dollar of a company’s earnings.

Project what investing a fixed amount monthly grows into.

Break-Even Calculator

How many units you must sell to cover your costs.

Gold Value Calculator

Live gold value by karat, gram, tola or ounce.

CAGR Calculator

Turn a start and end value into one annual growth rate.

Dividend Yield Calculator

Work out dividend yield, yield on cost, and what reinvesting compounds into.

Find the down payment needed for a target loan amount.

Estimate federal estate tax owed on an inheritance.

Payment and mortgage insurance for an FHA-backed loan.

Solve for payment, rate, term, or present/future value.

Project what an investment grows to over time.

Calculate GDP from spending or from income, and compare both.

Estimate borrowing power and payments on a home equity line.

Home Equity Loan

Payment, payoff schedule and how much you can borrow.

House Affordability

Home price you can afford, by income or by monthly budget.

See how prices and purchasing power change over time.

Calculate simple or compound interest on a balance.

Back into the interest rate on a fixed loan.

Project traditional IRA growth and tax-deferred savings.

Find the internal rate of return on cash flows.

Estimate monthly payments on an equipment or property lease.

Calculate profit margin and markup from cost and price.

Compare tax owed filing jointly vs. separately.

Mortgage Amortization

Year-by-year mortgage principal and interest breakdown.

Repayments, interest-only cost and Stamp Duty, with the full schedule.

Mortgage Payoff

See how extra payments shorten a mortgage payoff.

Project mutual fund growth with fees and contributions.

Add up assets and debts to find your net worth.

Find how long an investment takes to repay itself.

Calculate a fixed loan payment from rate and term.

Estimate monthly pension income at retirement.

Monthly payment and total cost of a personal loan.

Find today's value of a future lump sum.

Estimate returns and cash flow on a property investment.

Compare your current mortgage to a refinance offer.

Find an affordable rent based on your income.

Compare the long-term cost of renting vs. buying.

Rental Property

Estimate cash flow and ROI on a rental property.

Calculate payments needed to repay a loan by a target date.

Calculate your required minimum distribution from retirement accounts.

Calculate return on investment as a percentage.

Project tax-free growth in a Roth IRA.

Project savings growth from deposits and interest.

Simple Interest

Calculate interest without compounding, on principal alone.

Social Security

Estimate your monthly Social Security benefit.

Monthly payment and total interest on student debt.

Take Home Paycheck

Estimate net pay after taxes and deductions.

Payments on a VA-backed home loan, no PMI.

Add or remove VAT from a price.

Health & Fitness 30

BMI, calories, body composition, pregnancy and more.

Body Mass Index, category, and healthy weight range.

Estimate daily calories needed to maintain, lose, or gain weight.

Estimate body fat percentage from body measurements.

Calculate calories burned at rest (basal metabolic rate).

Total daily energy expenditure incl. activity level.

Estimate ideal body weight using common formulas.

Daily protein, carb, and fat targets for your goal.

Track pregnancy week-by-week from conception or LMP.

Estimate your pregnancy due date from last period.

Calculate running pace, time, or distance from the other two.

Estimate body fat % using the US Army tape method.

Estimate blood alcohol content from drinks and time.

Body Surface Area

Calculate body surface area from height and weight.

Estimate somatotype: ectomorph, mesomorph, or endomorph.

Find your bra size from band and bust measurements.

Calories Burned

Estimate calories burned by activity, time, and weight.

Find a daily carb target based on your calorie goal.

Estimate your likely conception date from due date.

Find a daily fat gram target from your calories.

Estimate kidney function (glomerular filtration rate).

Find the healthy weight range for your height.

Calculate body weight minus estimated fat mass.

Estimate your 1-rep max from a lighter lift.

Estimate your fertile window and ovulation date.

Predict your next period from cycle history.

Pregnancy Conception

Estimate conception date from an ultrasound or due date.

Pregnancy Weight Gain

See recommended pregnancy weight gain by trimester.

Find a daily protein target for your body and goal.

Shoe Size Conversion

Convert shoe sizes between US, UK, and EU.

Target Heart Rate

Find your ideal workout heart rate zone by age.

Math 39

Algebra, statistics, geometry and everyday math.

Full scientific calculator with trig, logs, and more.

Find a percentage, or work backward from one.

Add, subtract, multiply, and divide fractions.

Standard Deviation

Calculate standard deviation and variance of a data set.

Solve any triangle's sides, angles, and area.

Random Number Generator

Generate random numbers within a custom range.

Find the greatest common factor of a set of numbers.

Find the least common multiple of a set of numbers.

Simplify a ratio or scale it to a new value.

Add your courses with credits and grades — get your GPA instantly.

Base64 Encode Decode

Encode or decode text to and from Base64.

Do arithmetic on numbers too large for a standard calculator.

Convert and do math with binary numbers.

Confidence Interval

Calculate a confidence interval from sample data.

Roll virtual dice with custom sides and count.

Calculate a base raised to any power.

Find all factors and prime factorization of a number.

Weighted grade from assignments, tests, and final exam.

Convert and do math with hexadecimal numbers.

Calculate a logarithm in any base.

A playful name-based compatibility percentage.

Add, multiply, transpose, and invert matrices.

Mean Median Mode Range

Find the mean, median, mode, and range of a data set.

Number Sequence

Find the next terms in an arithmetic or geometric sequence.

Calculate percent error between measured and true values.

Find the sale price after a percentage discount.

Permutation And Combination

Calculate permutations (nPr) and combinations (nCr).

Calculate the probability of single or combined events.

Pythagorean Theorem

Solve a right triangle's missing side.

Quadratic Formula

Solve any quadratic equation for its roots.

Solve sides and angles of a right triangle.

Calculate square roots, cube roots, and nth roots.

Round a number to any decimal place or significant figure.

Find the sample size needed for a survey or study.

Scientific Notation

Convert numbers to and from scientific notation.

Find the slope and equation of a line between two points.

Mean, median, mode, and standard deviation in one place.

Find the elapsed time between two dates or times.

Convert a raw value to a standard z-score.

Crypto & Trading 10

Position sizing, P&L, leverage, mining, staking and trade risk.

Crypto Position Size

Risk-based trade size, margin and R:R ratio.

Crypto Profit / Loss

Exact P&L, ROI, breakeven price and fees.

Crypto Tax Calculator

Capital gains, cost basis and income tax on crypto.

Liquidation Price

Exact liquidation price for isolated or cross margin.

Leverage Calculator

Margin, position size and ROI at any leverage.

Daily, monthly and yearly mining profit projection.

Project staking rewards from APY, APR and compounding.

Backtest dollar-cost averaging vs. a lump-sum buy.

Risk/Reward Calculator

R:R ratio, breakeven win rate and trade expectancy.

Bitcoin Calculator

Live BTC to USD converter, price chart, and profit calculator.

Other 48

Date & time, housing, units, tools and everyday life.

A birth date — your exact age, down to the day.

Add or subtract days, months, or years from a date.

Add or subtract hours, minutes, and seconds.

Add up total hours worked between clock-in and clock-out.

Calculate concrete volume needed for a slab or footing.

Convert between length, weight, volume, and more.

Estimate trip fuel cost from distance and mileage.

Password Generator

Generate strong random passwords with custom rules.

Calculate a tip and split the bill between people.

Find the best bedtime or wake time by sleep cycles.

Estimate file transfer time from bandwidth and size.

Estimate BTUs needed to heat or cool a room.

Count the days between two calendar dates.

Day Of The Week

Find what day of the week any date fell on.

Calculate density, mass, or volume from the other two.

Calculate dew point from temperature and humidity.

Estimate electricity cost from usage and rate.

Engine Horsepower

Estimate engine horsepower from trap speed or weight.

Calculate MPG from miles driven and fuel used.

Calculate your golf handicap index from recent scores.

Estimate gravel volume and cost for a project.

Calculate remaining quantity after radioactive or drug decay.

Calculate "feels like" temperature from heat and humidity.

Convert height between feet/inches and centimeters.

Convert and calculate horsepower from torque and RPM.

Calculate subnet mask, range, and host count.

Convert and calculate mass across common units.

Calculate mileage reimbursement from miles and rate.

Calculate solution molarity from moles and volume.

Molecular Weight

Calculate the molecular weight of a chemical formula.

Estimate mulch volume and bags needed for a bed.

Solve voltage, current, or resistance from Ohm's Law.

Decode resistor color bands into resistance value.

Roman Numeral Converter

Convert between Roman numerals and numbers.

Estimate roofing material needed from roof area.

Calculate speed, distance, or time from the other two.

Calculate area in square feet for a room or lot.

Calculate stair rise, run, and step count.

Calculate surface area of common 3D shapes.

Estimate tiles needed for a floor or wall area.

Calculate total hours and pay from a weekly time card.

Convert a time between two time zones.

Compare tire sizes and their effect on speedometer accuracy.

URL Encode Decode

Encode or decode text for use in a URL.

Calculate voltage drop across a wire run.

Calculate volume of common 3D shapes.

Convert weight between pounds, kilograms, and more.

Calculate "feels like" temperature from wind and cold.