Estimate monthly loan payments, total repayment, and total interest for a fixed-rate amortizing loan.

Calculate future value, total contributions, and estimated interest earned from compound growth.

Calculate simple interest, total repayment, and total interest earned or owed.

Find how much you need to save each month to reach a financial goal.

Calculate total return, percentage return, and annualized return on an investment.

Estimate how long it will take to pay off a credit card balance and how much interest you may pay.

Estimate APR from loan amount, interest rate, upfront fees, and loan term.

Estimate future retirement savings from current balance, monthly contributions, expected return, and time until retirement.

Calculate annual percentage yield from interest rate and compounding frequency.

Calculate your debt-to-income ratio from monthly debt payments and gross monthly income.

Estimate how much an investment may grow to in the future.

Estimate future purchasing power after inflation.

Calculate what a future amount is worth today using a discount rate.

Estimate how long it may take money to double at a fixed return rate.

Estimate savings interest earned over time with optional monthly deposits.

Calculate your Body Mass Index using your weight and height. BMI is a quick screening measure that can help estimate whether your weight is in a general healthy range for your height.

Estimate your Basal Metabolic Rate, or BMR, using your age, sex, height, and weight. BMR is the estimated number of calories your body uses at rest.

Estimate your Total Daily Energy Expenditure, or TDEE, based on your BMR and activity level. TDEE is an estimate of how many calories you burn in a typical day.

Estimate ideal body weight using a height-based formula. This calculator gives a general reference range, not a medical target or complete health assessment.

Estimate body fat percentage from body measurements using the U.S. Navy circumference method.

Estimate how much water to drink per day based on weight, activity level, climate, and optional pregnancy or breastfeeding adjustments.

Estimate your pregnancy due date from your last menstrual period, conception date, or IVF embryo transfer date.

Calculate daily protein, carbohydrate, and fat targets from your calorie goal and preferred macro split.

Estimate your exercise heart rate zones from your age, estimated maximum heart rate, and optional resting heart rate.

Calculate your waist-to-hip ratio and estimate body-fat distribution risk from waist and hip measurements.

Estimate daily calorie targets for weight loss based on TDEE and weekly weight-loss goal.

Estimate calories burned from activity duration, body weight, and MET value.

Estimate one-rep max strength from weight lifted and repetitions.

Estimate daily protein needs based on body weight and fitness goal.

Estimate calories burned from steps, body weight, and stride length.

Estimate the date to reach a target weight based on weekly weight change.

Calculate percentages, percentage shares, and percentage increases or decreases.

Add, subtract, multiply, divide, and simplify fractions.

Simplify ratios and solve missing values in equivalent ratios.

Calculate mean, median, minimum, maximum, range, and count from a list of numbers.

Calculate area for rectangles, squares, triangles, circles, and trapezoids.

Calculate volume for cubes, rectangular prisms, cylinders, spheres, and cones.

Calculate circle area, circumference, and diameter from radius.

Convert a decimal number into a simplified fraction.

Calculate the distance between two coordinate points.

Calculate powers, squares, cubes, and exponent expressions.

Convert a fraction into a decimal value.

Find the greatest common divisor of two or more whole numbers.

Find the least common multiple of two or more whole numbers.

Find the midpoint between two coordinate points.

Calculate percentage increase, decrease, and change between two values.

Break a whole number into its prime factors.

Find a missing side of a right triangle using the Pythagorean theorem.

Solve quadratic equations using the quadratic formula.

Round a number to decimal places, tens, hundreds, or thousands.

Calculate the slope between two points.

Calculate mean, median, mode, range, variance, and standard deviation.

Calculate triangle area from base and height, or perimeter from three sides.

Estimate monthly mortgage payments including principal, interest, and optional taxes, insurance, and HOA fees.

Estimate affordable monthly rent from income and rent-to-income percentage.

Estimate how much home you may be able to afford based on income, debts, down payment, and mortgage assumptions.

Estimate annual and monthly property tax based on property value, assessment percentage, tax rate, and exemptions.

Estimate monthly savings and break-even time when refinancing a mortgage.

Compare the estimated cost of renting versus buying over a selected time period.

Estimate monthly mortgage payment and view first-year amortization details.

Calculate a property capitalization rate from rental income, vacancy, operating expenses, and property value.

Estimate rental property cash flow after expenses and debt service.

Estimate home purchase closing costs from home price, loan amount, cost percentage, fees, and credits.

Calculate the down payment amount, loan amount, and down payment percentage for a home purchase.

Calculate debt service coverage ratio for income-producing property.

Estimate home equity from property value and remaining mortgage balance.

Calculate loan-to-value ratio from loan amount and property value.

Estimate interest savings and payoff time from making extra mortgage payments.

Estimate the cost of mortgage points and monthly payment savings.

Calculate net operating income from rental income and operating expenses.

Calculate property price per square foot or square meter.

Estimate monthly and annual property management fees from rental income.

Estimate future property value based on annual appreciation rate.

Calculate gross and net rental yield from property value, rent, and expenses.

Calculate rental vacancy rate from vacant units and total units.

Convert temperatures between Celsius, Fahrenheit, and Kelvin.

Convert length units including meters, kilometers, centimeters, millimeters, inches, feet, yards, and miles.

Convert weight and mass units including kilograms, grams, pounds, ounces, stones, and metric tons.

Convert speed units including meters per second, kilometers per hour, miles per hour, feet per second, and knots.

Convert time units including seconds, minutes, hours, days, weeks, months, and years.

Convert digital storage units including bytes, KB, MB, GB, TB, and bits.

Convert angle units including degrees, radians, gradians, arcminutes, and arcseconds.

Convert area units including square meters, square feet, acres, hectares, and square kilometers.

Convert common cooking measurements including cups, tablespoons, teaspoons, milliliters, and liters.

Convert energy units including joules, kilojoules, calories, kilocalories, watt-hours, and BTU.

Convert fuel economy between miles per gallon, kilometers per liter, and liters per 100 km.

Convert power units including watts, kilowatts, horsepower, BTU per hour, and foot-pounds per second.

Convert pressure units including pascals, kilopascals, bar, psi, atmosphere, and mmHg.

Convert liquid and volume units including liters, milliliters, gallons, quarts, pints, cups, and fluid ounces.

Calculate exact age in years, months, and days from a date of birth.

Calculate the number of days, weeks, months, and years between two dates.

Calculate the duration between two times, with an optional break deduction.

Calculate how many days are left until a future date.

Count business days between two dates, excluding weekends.

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

Find the day of the week for any selected date.

Add or remove VAT, GST, or sales tax from an amount using a custom tax rate.

Calculate gross profit, profit margin, and markup from cost and selling price.

Calculate how many units you need to sell to cover fixed and variable costs.

Calculate return on investment from cost and gain.

Calculate sale price, discount amount, and final price after a percentage discount.

Calculate selling price, profit, and margin from cost and markup percentage.

Calculate tip amount, total bill, and split cost per person.

Calculate average order value from total revenue and number of orders.

Calculate monthly burn rate based on starting cash, ending cash, and the number of months.

Estimate how many months your current cash balance can last based on monthly burn rate.

Calculate customer churn rate and retention rate for a selected period.

Calculate conversion rate from visitors, leads, sales, or actions.

Calculate cost per click, total ad cost, or number of clicks for marketing campaigns.

Calculate cost per thousand impressions, ad cost, or impressions for advertising campaigns.

Calculate customer acquisition cost from sales and marketing spend.

Estimate customer lifetime value using average order value, purchase frequency, and customer lifespan.

Calculate EBITDA from net income, interest, taxes, depreciation, and amortization.

Calculate gross profit and gross profit margin from revenue and cost of goods sold.

Calculate inventory turnover ratio and days inventory outstanding.

Calculate monthly recurring revenue and annual recurring revenue from active customers and average revenue per account.

Calculate net profit and net profit margin after total expenses.

Calculate operating margin from revenue and operating income.

Estimate how long it takes to recover an initial investment from cash inflows.

Calculate revenue growth percentage between two periods.

Calculate return on ad spend from advertising cost and revenue generated.

Convert annual salary into hourly, weekly, biweekly, and monthly pay estimates.

Calculate GPA from course grades and credits on a 4.0 scale.

Calculate your percentage grade from points earned and total possible points.

Find the score you need on a final exam to reach your desired class grade.

Plan how much time to study per day based on total study hours and deadline.

Calculate the average, median, highest, and lowest score from a list of class grades.

Calculate test percentage and approximate letter grade from correct answers and total questions.

Calculate a weighted course grade from assignment categories and weights.

Estimate how much paint you need for a room based on wall area, coats, and paint coverage.

Estimate flooring material needed based on room size and waste percentage.

Estimate concrete volume in cubic feet, cubic yards, and number of bags.

Estimate how many tiles are needed for a floor, wall, or backsplash project.

Estimate wallpaper rolls needed based on wall size, roll coverage, openings, and waste.

Estimate gravel volume and weight for driveways, paths, and landscaping projects.

Estimate the number of deck boards needed based on deck size and board dimensions.

Estimate drywall sheets needed for walls or ceilings.

Estimate fence panels and posts needed from total fence length and panel width.

Calculate board feet for lumber planning and material estimates.

Estimate mulch volume needed in cubic feet, cubic yards, and bags.

Estimate how many pavers you need for a patio, walkway, or outdoor surface.

Calculate roof pitch, angle, and slope factor from rise and run.

Estimate sod rolls or square footage needed for lawn installation.

Estimate soil volume for garden beds, planters, and landscaping projects.

Estimate stair riser count, riser height, tread count, and total run.

Estimate trip fuel cost based on distance, fuel efficiency, and fuel price.

Estimate travel time based on distance, average speed, and optional stops.

Split a bill between people, including optional tax and tip.

Find how many days are left until your next birthday.

Calculate running or walking pace from distance and time.

Scale recipe ingredients up or down based on desired servings.

Compare products by calculating price per unit.