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50 free calculators for finance, health, maths, and everyday life. No ads, no account needed.
Most Popular
Finance Calculators
Calculate mortgage payments, compound interest, loans, savings, tax, and more.
Mortgage Calculator
๐ฐCalculate your monthly mortgage payments, total interest, and total cost of your home loan.
Use calculatorCompound Interest Calculator
๐ฐCalculate how your savings or investments grow over time with compound interest.
Use calculatorLoan Calculator
๐ฐCalculate monthly loan repayments, total interest, and total cost for personal loans, car finance, and more.
Use calculatorSalary Calculator
๐ฐConvert your salary between yearly, monthly, weekly, daily, and hourly rates. See your take-home pay after tax.
Use calculatorVAT Calculator
๐ฐAdd or remove VAT from any amount. Supports UK standard rate (20%), reduced rate (5%), and custom rates.
Use calculatorSavings Calculator
๐ฐCalculate how your savings will grow over time with regular deposits and compound interest.
Use calculatorInvestment Return Calculator
๐ฐCalculate the future value of your investments based on initial investment, regular contributions, and expected rate of return.
Use calculatorHourly to Salary Calculator
๐ฐConvert an hourly wage to an annual salary, or an annual salary to an hourly rate. Factor in hours per week and weeks per year.
Use calculatorBudget Calculator
๐ฐUse the 50/30/20 budget rule to allocate your after-tax income to needs, wants, and savings.
Use calculatorRetirement Calculator
๐ฐProject how much your retirement savings will grow and estimate whether you are on track to meet your retirement income goal.
Use calculatorCredit Card Payoff Calculator
๐ฐCalculate how long it will take to pay off your credit card balance and how much total interest you will pay.
Use calculatorSimple Interest Calculator
๐ฐCalculate simple interest on a principal amount using the formula I = P ร r ร t. Find total interest earned or owed.
Use calculatorInflation Calculator
๐ฐCalculate how inflation affects the purchasing power of your money over time. See what today's money will be worth in the future.
Use calculatorNet Worth Calculator
๐ฐCalculate your total net worth by adding up all your assets and subtracting all your liabilities. Track your financial health over time.
Use calculatorEffective Tax Rate Calculator
๐ฐCalculate your effective tax rate by dividing total tax paid by your gross income. Compare your actual tax burden to marginal tax brackets.
Use calculatorHealth Calculators
Calculate BMI, calories, body fat percentage, pregnancy due date, and more.
BMI Calculator
โค๏ธCalculate your Body Mass Index (BMI) to check whether you are at a healthy weight for your height.
Use calculatorCalorie Calculator
โค๏ธEstimate your daily calorie needs based on age, height, weight, and activity level.
Use calculatorIdeal Weight Calculator
โค๏ธFind your ideal weight range based on height and gender using multiple established formulas.
Use calculatorPregnancy Due Date Calculator
โค๏ธCalculate your estimated due date and see key pregnancy milestones based on your last menstrual period.
Use calculatorBody Fat Calculator
โค๏ธEstimate your body fat percentage using the US Navy method based on body measurements.
Use calculatorMacro Calculator
โค๏ธCalculate your optimal daily macronutrient intake โ protein, carbohydrates, and fat โ based on your goals.
Use calculatorWater Intake Calculator
โค๏ธCalculate your recommended daily water intake based on your body weight, activity level, and climate.
Use calculatorHeart Rate Zone Calculator
โค๏ธCalculate your target heart rate training zones using the Karvonen formula for more effective workouts.
Use calculatorSleep Calculator
โค๏ธCalculate the best times to fall asleep or wake up based on 90-minute sleep cycles for more refreshing rest.
Use calculatorBAC Calculator
โค๏ธEstimate your blood alcohol content (BAC) based on drinks consumed, body weight, gender, and time elapsed.
Use calculatorOvulation Calculator
โค๏ธEstimate your ovulation date and fertile window based on your menstrual cycle length and last period date.
Use calculatorCalories Burned Calculator
โค๏ธCalculate calories burned during exercise and daily activities using MET (Metabolic Equivalent of Task) values.
Use calculatorMaths & Conversion Calculators
Percentages, fractions, unit conversions, area, volume, and more.
Percentage Calculator
โCalculate percentages easily โ find what percent of a number is, percentage change, and more.
Use calculatorFraction Calculator
โAdd, subtract, multiply, and divide fractions. Simplifies results to the lowest terms automatically.
Use calculatorArea Calculator
โCalculate the area of common shapes โ rectangle, circle, triangle, trapezium, and more.
Use calculatorAverage Calculator
โCalculate the mean, median, mode, and range from any set of numbers. Enter your data and get all four measures of central tendency instantly.
Use calculatorRatio Calculator
โSolve proportions and find the missing value in A:B = C:D. Simplify ratios, scale recipes, convert map distances, and work with any proportional relationship.
Use calculatorQuadratic Equation Solver
โSolve any quadratic equation axยฒ + bx + c = 0. Get both roots, the discriminant, vertex coordinates, and axis of symmetry with full working shown.
Use calculatorExponent Calculator
โCalculate any power or root. Enter a base and exponent to compute bโฟ, including negative exponents, fractional exponents (roots), and zero power.
Use calculatorLCM & HCF Calculator
โFind the Least Common Multiple (LCM) and Highest Common Factor (HCF/GCD) of two or more numbers. Uses prime factorisation and the Euclidean algorithm with step-by-step working.
Use calculatorRoman Numeral Converter
โConvert between Roman numerals and standard (Arabic) numbers. Enter a Roman numeral like XIV or a number like 2024 and get the conversion instantly with the breakdown explained.
Use calculatorScientific Notation Converter
โConvert between standard notation and scientific notation. Enter any number and get it expressed as a ร 10โฟ, or enter scientific notation to see the full number.
Use calculatorPrime Number Calculator
โCheck if a number is prime, find its complete prime factorisation, and list all prime numbers up to a given limit. Uses trial division and the Sieve of Eratosthenes.
Use calculatorEveryday Calculators
Age, date, time, tip, discount, fuel cost, and other practical everyday tools.
Age Calculator
โ๏ธCalculate your exact age in years, months, and days. Find the time between any two dates.
Use calculatorDate Calculator
โ๏ธAdd or subtract days, weeks, or months from any date. Find the difference between two dates.
Use calculatorTip Calculator
โ๏ธCalculate the tip amount and total bill. Split the bill evenly between any number of people.
Use calculatorDiscount Calculator
โ๏ธCalculate the sale price after a percentage discount. See how much you save on any purchase.
Use calculatorUnit Converter
โ๏ธConvert length, weight, temperature, volume, and speed between common metric and imperial units instantly.
Use calculatorFuel Cost Calculator
โ๏ธCalculate the fuel needed and total cost for any journey based on distance, fuel efficiency, and price per litre or gallon.
Use calculatorReading Time Calculator
โ๏ธEstimate how long it takes to read or speak any text based on word count and average reading or speaking speed.
Use calculatorGrade Calculator
โ๏ธCalculate your weighted average grade across multiple assignments, convert to letter grade and GPA on a 4.0 scale.
Use calculatorPace Calculator
โ๏ธCalculate your running or walking pace, speed, and projected finish times for any distance including 5K, 10K, half marathon, and marathon.
Use calculatorTime Calculator
โ๏ธAdd or subtract hours, minutes, and seconds, or find the exact duration between two times of day.
Use calculatorGPA Calculator
โ๏ธCalculate your semester and cumulative GPA on a 4.0 scale by entering courses, grades, and credit hours.
Use calculatorPaint Calculator
โ๏ธCalculate how much paint you need for a room based on wall dimensions, number of coats, and standard tin sizes (1L, 2.5L, 5L).
Use calculatorWhy use Calculator Place?
Every calculator uses established formulas and authoritative reference ranges โ no guesswork.
Works anywhere
All calculators support standard units used worldwide. Finance tools show your local currency. Health calculators accept metric (kg, cm) and imperial (lbs, ft/in) inputs.
Instant, no sign-up
Every calculator runs entirely in your browser. No account, no email address, no data sent to a server. Results appear the moment you click Calculate.
Verified formulas
Each formula is sourced from authoritative references โ standard amortisation for mortgages, WHO BMI classifications, and Mifflin-St Jeor for calorie estimates.