Free Online Calculators
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Concrete CalculatorCalculate concrete bags and cubic yards for a slab. Compare 40, 50, 60 and 80 lb bags, add waste and check 10x10 or 12x12 slab examples.Paint CalculatorEstimate paint gallons for room walls and an optional ceiling. Adjust coats, door and window sizes, and product coverage. Includes a 12x12 room example.Square Footage CalculatorFree square footage calculator. Calculate the area of any room, house, or land in square feet, square meters, or square yards. Add multiple areas. No sign-up.Tile CalculatorCalculate tiles and whole boxes for floors, walls or backsplashes. Enter tile size, tiles per box and waste; estimate material cost with 12x24 examples.Unit ConverterFree unit converter for length, weight, and temperature. Convert cm to inches, kg to lbs, Fahrenheit to Celsius and more. Instant results, no sign-up.Age CalculatorFree age calculator. Find your exact age in years, months, and days, plus totals in weeks, days, hours, and minutes. Fast and no sign-up.Date CalculatorFree date calculator. Find the number of days, weeks, and months between two dates. Add or subtract days from any date. No sign-up.Days From Today CalculatorFree days from today calculator. Find a date 30, 60, 90, or any number of days from today. Add or subtract days, weeks, months. No sign-up.Time CalculatorFree time calculator. Calculate hours and minutes between two times. Convert to decimal hours for timesheets. Add time durations. No sign-up.Case ConverterFree online case converter. Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more. Instant, no sign-up.Lorem Ipsum GeneratorFree Lorem Ipsum generator. Create placeholder text by paragraphs, sentences, or words. Perfect for mockups, designs, and web development. No sign-up.Password GeneratorFree password generator. Create strong, random, secure passwords with custom length, uppercase, lowercase, numbers, and symbols. No sign-up, 100% private.QR Code GeneratorFree QR code generator. Create QR codes for URLs, text, phone numbers, and more. Download as PNG image. No sign-up, free for commercial use.Random Number GeneratorFree random number generator. Pick random numbers between any range, generate unique or duplicate numbers, and draw random items from a list. No sign-up.Word CounterFree word counter. Count words, characters, sentences, and paragraphs, plus estimated reading time. Real-time results, no sign-up.Amortization CalculatorFree amortization calculator. See a full payment schedule showing principal vs interest for each month. Any loan amount, rate, and term. No sign-up.Auto Loan CalculatorFree auto loan calculator. Estimate your monthly car payment, total interest, and total cost. Compare loan terms and rates instantly. No sign-up.Compound Interest CalculatorFree compound interest calculator. See how your savings and investments grow over time with compounding. Add monthly contributions and view a year-by-year breakdown.Credit Card Payoff CalculatorFree credit card payoff calculator. Find out how long it takes to pay off your credit card and total interest. See how extra payments help. No sign-up.Discount CalculatorFree discount calculator. Find the sale price after a percentage discount, calculate savings, and reverse-calculate original prices. No sign-up.Hourly to Salary CalculatorFree hourly to salary calculator. Convert your hourly wage to annual, monthly, weekly salary. Includes overtime. No sign-up.Inflation CalculatorFree inflation calculator. See how inflation erodes purchasing power over time. Calculate future prices and real value of money. No sign-up.Investment CalculatorFree investment calculator. Project your portfolio growth with initial investment, monthly contributions, and expected returns. See future value instantly.Loan CalculatorFree loan calculator. Calculate monthly payments and total interest for any fixed-rate loan — auto, personal, student, or home. Instant results.Mortgage CalculatorFree mortgage calculator. Estimate your monthly payment, total interest, and payoff date. See a full principal vs interest breakdown instantly.Net Worth CalculatorFree net worth calculator. Add up your assets and liabilities to find your net worth. See your financial position instantly. No sign-up.Retirement CalculatorFree retirement calculator. Project your retirement savings based on current balance, contributions, and return rate. See if you're on track. No sign-up.Salary CalculatorFree salary calculator. Convert between annual, monthly, biweekly, weekly, and hourly pay. See your breakdown instantly. No sign-up.Sales Tax CalculatorFree sales tax calculator. Add tax to a price or find the original price before tax. Works with any tax rate. Instant results, no sign-up.Savings CalculatorFree savings calculator. Find how long it takes to reach your savings goal or how much to save monthly. Includes interest. No sign-up.Tip CalculatorFree tip calculator. Calculate the tip amount and total, and split the bill between any number of people. Fast, easy, and no sign-up.BMI CalculatorFree BMI calculator for adults. Enter height and weight in metric or imperial units to get your Body Mass Index and weight category instantly.BMR CalculatorFree BMR calculator. Calculate your Basal Metabolic Rate using the Mifflin-St Jeor equation. Find out how many calories you burn at rest. No sign-up.Body Fat CalculatorFree body fat calculator using the U.S. Navy method. Estimate your body fat percentage from circumference measurements. No sign-up.Calorie CalculatorFree calorie calculator. Estimate your daily calorie needs for weight loss, maintenance, or gain using the Mifflin-St Jeor equation. Instant results.Ideal Weight CalculatorFree ideal weight calculator. Find your healthy weight range using the Devine formula and BMI. See your ideal body weight instantly. No sign-up.Macro CalculatorFree macro calculator. Calculate your daily protein, carbohydrate, and fat targets based on your calories and goals. No sign-up.Ovulation CalculatorFree ovulation calculator. Predict your ovulation date and fertile window based on your menstrual cycle. Plan for pregnancy with a 6-month calendar. No sign-up.Pace CalculatorFree running pace calculator. Calculate your pace per mile or km, finishing time, or speed. Perfect for runners and race planning. No sign-up.Pregnancy Due Date CalculatorFree pregnancy due date calculator. Estimate your due date based on your last period or conception date. See your pregnancy timeline and trimesters. No sign-up.Sleep CalculatorFree sleep calculator. Find the best time to go to sleep or wake up based on 90-minute sleep cycles. Wake up refreshed. No sign-up.TDEE CalculatorFree TDEE calculator. Calculate your Total Daily Energy Expenditure based on BMR and activity level. Find your maintenance calories. No sign-up.Water Intake CalculatorFree water intake calculator. Find your daily hydration goal based on weight, activity, and climate. Get your personalized water target. No sign-up.Average CalculatorFree average calculator. Find the mean, median, mode, and range of any set of numbers. Also shows sum and count. No sign-up.Fraction CalculatorFree fraction calculator. Add, subtract, multiply, and divide fractions with step-by-step results. Simplifies automatically. No sign-up.GPA CalculatorFree GPA calculator. Calculate your Grade Point Average on a 4.0 scale. Add courses, credits, and grades. Instant results. No sign-up.Grade CalculatorFree grade calculator. Calculate your final grade from current grade and exam weight. Find what score you need on the final to reach your target.Percentage CalculatorFree percentage calculator. Find X% of Y, what percent X is of Y, and percentage increase or decrease. Instant results, no sign-up.Ratio CalculatorFree ratio calculator. Simplify ratios, solve proportions, and scale ratios. Enter two or three values to find the missing one. No sign-up.Scientific CalculatorFree scientific calculator online. Perform calculations with trigonometry, logarithms, exponents, square roots, factorials, π, and e. No sign-up, works in browser.
Everyday Calculators
Percentage Calculator Percent of a number, change & more Mortgage Calculator Monthly payment & total interest BMI Calculator Body mass index & weight category Age Calculator Exact age in years, months, days Compound Interest Watch your savings grow Tip Calculator Tip & split the bill easily Calorie Calculator Daily calorie needs (BMR & TDEE) Loan Calculator Payment & total cost of any loan
Start with the question you need to answer
What will this loan cost each month?Compare payment terms, try a zero-interest example and see the full repayment cost. What difference would monthly savings make?Compare regular contributions with a single deposit and follow the yearly balance. How old will I be on a specific date?Use a target date, explore a leap-day example and count calendar days. How many bags of concrete do I need?Convert slab dimensions to cubic yards and bag counts with an adjustable allowance. How many boxes of tile do I need?Use your tile size, pack count and allowance to estimate whole boxes and material cost. How much paint for two coats?Subtract openings, enter your paint's coverage and estimate whole gallons.
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