All calculators at a glance
Free online calculators for loans, EMI, interest, percentages, BMI, age, GPA, dates and more. Accurate results with clear explanations of every formula.
- Age Calculator: Free age calculator. Find your exact age in years, months and days, the total days and hours you have lived, the weekday you were born and your next birthday.
- BMI Calculator: Free BMI calculator for adults. Enter your height and weight in metric or imperial units to get your body mass index, WHO category and healthy weight range.
- Calorie Calculator: Free calorie calculator using the Mifflin-St Jeor equation. Find your BMR, daily maintenance calories (TDEE) and daily targets to lose or gain weight.
- Body Fat Calculator: Free body fat calculator using the U.S. Navy tape-measure method. Enter your height, neck, waist and hip sizes to estimate body fat %, fat mass and lean mass.
- Pregnancy Due Date Calculator: Estimate your due date from your last period, conception date or IVF transfer. See how many weeks pregnant you are, your trimester and key milestone dates.
- Percentage Calculator: Free percentage calculator with six tools in one: X% of Y, what percent one number is of another, percentage change, increase or decrease and reverse percent.
- GPA Calculator: Free GPA calculator. Add your courses, credits and letter grades to get your semester GPA on the 4.0 scale, then add past terms to see your cumulative GPA.
- CGPA to Percentage Calculator: Convert CGPA to percentage and percentage to CGPA with the CBSE ×9.5 method, a straight 10-point or 4-point formula, or your own, plus a reference table.
- Final Grade Calculator: Find the score you need on your final exam to reach a target grade, from your current grade and the exam weight, and see your overall grade for any score.
- Days Between Dates: Count the days between two dates, with weeks, months and years, an option to include the end date, and business days that skip weekends and your holidays.
- Date Calculator: Add or subtract days, weeks, months and years from any date, or count business days forward or back, and get the resulting date and its weekday instantly.
- Hours Calculator: Calculate the hours and minutes between two times, even past midnight, add and subtract durations in hh:mm, and convert hours and minutes to decimal hours.
- Fuel Cost Calculator: Estimate the fuel cost of a trip from distance, fuel economy (L/100 km, km/L or MPG) and fuel price per litre or gallon, with round trips and cost sharing.
- Scientific Calculator: Free online scientific calculator with trig in degrees or radians, inverse trig, logs, powers, roots, factorials, memory and history. Works with your keyboard.
- Statistics Calculator: Paste a list of numbers to get the mean, median, mode, range, variance, standard deviation, quartiles, IQR and outliers, with sample and population formulas.
- Fraction Calculator: Add, subtract, multiply and divide fractions and mixed numbers. Get the simplified fraction, mixed number and exact decimal, with step-by-step working shown.
- EMI Calculator: Free EMI calculator for home, car and personal loans. See your monthly EMI, total interest and a month-by-month amortization schedule you can download as CSV.
- Mortgage Calculator: Free mortgage calculator with property tax, home insurance, HOA and PMI. See your full monthly payment, payoff date, total interest and amortization schedule.
- Compound Interest Calculator: Free compound interest calculator. Add monthly or yearly deposits, pick daily to annual compounding and see future value, interest earned and a yearly table.
- Simple Interest Calculator: Free simple interest calculator. Find interest and the total from principal, rate and time, or solve for the rate, time or principal. Days, months or years.
- SIP Calculator: Free SIP calculator for mutual funds. Estimate the maturity value, amount invested and returns of a monthly SIP with yearly step-up, or switch to a lump sum.
- Discount Calculator: Free discount calculator. Get the sale price and savings from a percent or amount off, stack an extra discount, add tax, or work back to the original price.
- Tip Calculator: Free tip calculator. Pick 15%, 18%, 20% or a custom tip, split the bill between any number of people, round up and see the tip, total and amount per person.
- Sales Tax Calculator: Free sales tax calculator. Add tax to a price or remove it from a tax-inclusive total, combine state and local rates, and use it for VAT or GST as well.
- Profit Margin Calculator: Free profit margin calculator. Enter cost and selling price to get gross profit, margin and markup, or find the price you need for a target margin or markup.
- ROI Calculator: Free ROI calculator. Enter the amount invested and returned to get net gain, total return on investment and annualized ROI (CAGR) over years or between dates.
- Inflation Calculator: Free inflation calculator. See what something will cost in the future and how much purchasing power your money loses at any inflation rate, with a yearly table.
- Zakat Calculator: Free zakat calculator. Add cash, savings, gold, silver, investments and business stock, deduct debts due now, and see if you meet the nisab and the 2.5% due.
- Retirement Calculator: Free retirement calculator. Project savings at retirement, the nest egg your desired income needs after inflation, and how much extra to save each month.
- Savings Goal Calculator: Free savings goal calculator. Find how much to save each month to reach a target by a date, or how long your monthly savings take to get there, with interest.
- Break-Even Calculator: Free break-even calculator. Enter fixed costs, variable cost and price per unit to find break-even units and revenue, contribution margin and margin of safety.
- Credit Card Payoff Calculator: Free credit card payoff calculator. See how many months it takes to clear your balance, total interest and payoff date, or the payment needed to be debt-free.
Every tool on ToolsWorld is free, needs no account and works on phones, tablets and computers.