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Finance
24SIP CalculatorCalculate SIP maturity value and returns, including step-up SIP where the monthly amount rises each year, and what the corpus is worth after inflation.Lumpsum CalculatorCalculate the future value of a one-time lumpsum investment. See how a single mutual fund or FD investment grows with compounding over time.EMI CalculatorCalculate EMI for a home, car or personal loan. Monthly instalment, total interest, a year-by-year schedule and how much of the loan is paid off.Mortgage CalculatorEstimate your monthly mortgage payment including principal, interest, property tax and insurance, with a full amortization schedule.Compound Interest CalculatorCalculate compound interest with optional monthly contributions. Choose daily, monthly, quarterly or yearly compounding and see total interest earned.Simple Interest CalculatorCalculate simple interest instantly. Enter principal, annual rate and time to see the interest earned and the total maturity amount, with a year-by-year table.FIRE CalculatorFind your FIRE number and the age you could reach financial independence, based on savings, monthly investing, expenses and the 4% rule.ROI CalculatorCalculate your return on investment (ROI) and annualized ROI instantly. Enter your initial investment and final value to see your gain or loss.Auto Loan CalculatorCalculate your car loan monthly payment, total interest paid and full amortization schedule. Works for new and used vehicles.Credit Card Payoff CalculatorFind out how long it will take to pay off your credit card balance and how much interest you will pay based on your monthly payment.Salary CalculatorConvert your salary between annual, monthly, weekly, daily and hourly rates instantly. Works for any pay frequency.Profit Margin CalculatorCalculate gross profit, profit margin percentage and markup percentage from revenue and cost. Essential for pricing and business analysis.Sales Tax CalculatorCalculate the sales tax amount and total price for any item instantly. Enter the price and tax rate (GST, VAT, HST) to see the breakdown.Discount CalculatorCalculate the sale price and how much you save with any discount percentage. Perfect for shopping, comparing deals and verifying prices.Break-even CalculatorCalculate how many units you need to sell and what revenue is needed to break even. Essential for product pricing and business planning.GST CalculatorAdd or remove GST and see the CGST, SGST and IGST split. Enter a value and rate to get the tax, the net price and the gross total.FD CalculatorCalculate fixed deposit maturity and interest, with senior citizen rates and the effective annual yield. Quarterly, monthly or yearly compounding.Inflation CalculatorSee how inflation changes the value of money. Enter an amount, a rate and a number of years to find the future cost and the lost purchasing power.Continuous Compounding CalculatorCalculate continuously compounded interest with the A = Pe^rt formula. See future value, effective annual yield, and how it beats monthly compounding.VAT CalculatorCalculate VAT to add to a net price or extract from a gross price. Works with any VAT rate, instant result.Take-Home Pay CalculatorEstimate your take-home pay after tax and other deductions, using your own effective tax rate. Simple net-pay estimate, no bracket lookup needed.Loan CalculatorCalculate the monthly payment, total interest and total cost of any fixed-rate loan. Works for personal loans, auto loans, or any generic loan.Debt Payoff CalculatorCompare the debt avalanche and debt snowball payoff strategies for two debts side by side. See which saves more interest and how long each takes.Amortization CalculatorSee the full month-by-month amortization schedule for any loan, and how much time and interest an extra payment saves.
Health & Fitness
14BMI CalculatorCalculate your Body Mass Index (BMI) in metric or imperial units, see your weight category and the healthy weight range for your height.Calorie (TDEE) CalculatorCalculate your TDEE and daily calorie needs using the Mifflin–St Jeor equation, with targets for maintaining, losing or gaining weight.Body Fat CalculatorCalculate your body fat percentage using the US Navy method. Enter your waist, neck and height measurements in metric or imperial for an accurate estimate.Water Intake CalculatorCalculate your recommended daily water intake based on your body weight and activity level. Get results in litres, glasses and ounces.Target Heart Rate CalculatorCalculate your maximum heart rate and target heart rate zones for fat burning, cardio and peak intensity training using the Karvonen method.One-Rep Max CalculatorCalculate your one-rep max (1RM) for any lift using the Epley formula. Get a full training percentage table from 60% to 95% of your max.Pregnancy CalculatorCalculate your pregnancy due date from your last menstrual period (LMP) using Naegele's rule. See weeks pregnant, days remaining and trimester.BMR CalculatorCalculate your BMR, the calories your body burns at rest, using the Mifflin-St Jeor formula. Enter your age, sex, height and weight for an instant result.Ideal Weight CalculatorFind your ideal body weight from your height and sex using the Devine, Robinson and Hamwi formulas, plus the healthy weight range for a normal BMI.Running Pace CalculatorWork out your running pace per km and per mile from a distance and finish time, plus your speed and a split table for every kilometre.Calorie CalculatorFind out how many calories you should eat per day to maintain, lose or gain weight, based on your age, sex, height, weight and activity level.Sleep CalculatorFind the best time to go to bed or wake up, based on 90-minute sleep cycles. Wake up between cycles, not in the middle of one.Ovulation CalculatorEstimate your ovulation date, fertile window and next period based on the first day of your last period and your average cycle length.Macro CalculatorCalculate your daily protein, carb and fat targets in grams, based on your calorie needs and a diet style of your choice.
Math & Everyday
18Percentage CalculatorFree percentage calculator. Find what percentage one number is of another, work out X% of Y, and calculate the increase or decrease between two values.Tip CalculatorCalculate the tip and total bill, and split it evenly between any number of people. Choose your tip percentage and see the amount per person.Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus total months, weeks, days and the countdown to your next birthday.Area CalculatorCalculate the area of any shape: square, rectangle, circle, triangle or trapezoid. Results in square metres, centimetres, feet and inches.Volume CalculatorCalculate the volume of any 3D shape: cube, rectangular box, cylinder, sphere or cone. Results in m³, cm³, litres and cubic feet.Pythagorean Theorem CalculatorCalculate the hypotenuse or missing leg of a right triangle using the Pythagorean theorem. Also shows the two acute angles.Standard Deviation CalculatorCalculate mean, sample standard deviation, population standard deviation and variance from a list of numbers. Enter comma-separated values.Quadratic Equation CalculatorSolve any quadratic equation ax² + bx + c = 0 instantly. Get the discriminant, both roots (real or complex) and the nature of the solution.Fraction SimplifierSimplify any fraction to its lowest terms using the GCD method. Get the simplified fraction, decimal equivalent and percentage.GPA CalculatorCalculate your GPA (Grade Point Average) by entering your course grades and credit hours. Supports A-F letter grades and 4.0 scale.Days Between DatesCount the days and weekdays between two dates, or how many weekdays until a date from today. Shows total days, weeks, weekdays and weekend days.Hours CalculatorCalculate the hours and minutes between a start and end time, minus breaks. Built for timesheets, with the result in hours, decimal hours and total minutes.Grade CalculatorFind out what score you need on your final exam to reach your target overall grade, based on your current grade and the exam's weight.Random Number GeneratorGenerate one or more random numbers within any range, with or without duplicates. Instant, free, no signup.Ratio CalculatorSimplify a ratio to its lowest terms, or solve a proportion (A:B = C:?) for the missing value. Instant results.Date Difference CalculatorFind the difference between two dates expressed as years, months and days - not just a raw day count. Great for anniversaries, timelines and historical dates.Business Days CalculatorFind the date N business days after or before a given date, skipping weekends. Useful for deadlines, shipping estimates and project planning.Countdown TimerFind out exactly how many days, weeks and months until (or since) any event - a wedding, deadline, launch date, holiday or anniversary.
Science
6Ohm's Law CalculatorCalculate voltage, current, resistance or power using Ohm's law (V = IR). Enter any two values to find the remaining electrical quantities.Speed CalculatorCalculate speed, distance or time using the formula speed = distance / time. Results shown in m/s, km/h and mph simultaneously.Force CalculatorCalculate force, mass or acceleration using Newton's second law F = ma. Also shows weight in Newtons for the given mass.Density CalculatorCalculate density, mass or volume using the density formula (density = mass / volume). Enter any two values to find the third.Molarity CalculatorCalculate the molarity of a solution from the mass of solute, its molar mass, and the solution volume. Instant, accurate result.Wind Chill / Heat Index CalculatorCalculate wind chill in cold, windy weather or heat index in hot, humid weather, using the official US National Weather Service formulas.
Construction
7Square Footage CalculatorCalculate square footage for any room or area shape - rectangle, square, circle, triangle or L-shape. Results in sq ft, sq m and sq yd.Paint CalculatorCalculate how many gallons of paint you need for a room. Enter room dimensions, number of coats and the paint's coverage rate to get an accurate estimate.Concrete CalculatorCalculate how much concrete you need for a slab, column or footing. Results in cubic yards, cubic metres and 60lb bags, with 10% waste factor.Tile CalculatorWork out how many tiles you need for a floor or wall. Enter the area and tile size, add a wastage margin, and get the tile count and number of boxes.Gravel CalculatorWork out how much gravel you need for a driveway, path or landscaping bed, in cubic yards and tons or cubic metres and tonnes, with bags too.Mulch CalculatorCalculate how much mulch you need for a garden bed or landscaping project. Get cubic yards, cubic feet and the number of standard bags.Cubic Yards CalculatorCalculate cubic yards from length, width and height/depth. A quick, material-neutral volume calculator for any bulk material job.
Converters
11Unit ConverterConvert between units of length, weight and temperature instantly. Accurate conversions with the exact conversion factor shown for every result.Celsius to FahrenheitConvert Celsius to Fahrenheit or Fahrenheit to Celsius instantly. Exact formula, instant result, works both directions.CM to InchesConvert centimetres to inches or inches to centimetres instantly. Exact conversion factor, works both directions.KG to LBSConvert kilograms to pounds or pounds to kilograms instantly. Exact conversion factor, works both directions.KM to MilesConvert kilometres to miles or miles to kilometres instantly. Exact conversion factor, works both directions.Liters to GallonsConvert litres to US gallons or US gallons to litres instantly. Exact conversion factor, works both directions.MPH to KM/HConvert mph to km/h (kph) instantly, plus a chart for every speed from 1 to 300 mph. 1 mph = 1.609344 km/h. Works km/h to mph too.MPG to KMPLConvert miles per gallon (MPG) to kilometres per litre (km/L) or back, for both US and UK gallons. Exact conversion, instant result.MB to GBConvert megabytes to gigabytes or GB to MB instantly. Choose binary (1024, how your OS shows file sizes) or decimal (1000, storage industry standard).Feet to MetersConvert feet to metres or metres to feet instantly. Exact conversion factor, works both directions.Roman Numeral ConverterConvert any number to Roman numerals instantly, with a Roman numerals chart from 1 to 100, hundreds, thousands and years like 2026 (MMXXVI).
Cooking
5Cups to GramsConvert cups to grams or grams to cups for flour, sugar, butter and other baking ingredients. Cups measure volume, so the answer depends on the ingredient.Tablespoons to TeaspoonsConvert tablespoons to teaspoons or teaspoons to tablespoons instantly. 1 tablespoon = 3 teaspoons, exactly.Oven Temperature ConversionConvert oven temperatures between Celsius, Fahrenheit and UK Gas Mark instantly. Essential for following recipes from a different country.Grams to OuncesConvert grams to ounces or ounces to grams instantly. Exact conversion factor for recipe weights, works both directions.Cups to mLConvert cups to millilitres or mL to cups, for both the US customary cup and the metric cup used in Australia, NZ and the UK.