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💰 Finance
View all → Loan / EMI Calculator Monthly payment, total interest and repayment for any loan. Mortgage Calculator Monthly home-loan payment from price, down payment, rate and term. Compound Interest Calculator How a lump sum grows with any compounding frequency. Simple Interest Calculator Interest and total amount with the P×R×T formula. SIP Calculator Future value of monthly SIP mutual-fund investments. FD Calculator Fixed deposit maturity value and interest earned. RD Calculator Recurring deposit maturity value from monthly deposits. Retirement Calculator Corpus you need to retire and whether your savings reach it. Inflation Calculator Future cost of expenses and loss of purchasing power. Salary to Hourly Calculator Convert between annual salary and hourly wage. Tip Calculator Tip amount, total bill and per-person split. Discount Calculator Sale price and savings after percentage discounts. GST Calculator Add or remove GST at any rate, with CGST/SGST split. VAT Calculator Add or remove VAT at any rate — net, VAT and gross. ROI Calculator ROI percentage, profit and annualized return (CAGR).
❤️ Health & Fitness
View all → BMI Calculator Body Mass Index, category and healthy weight range. BMR Calculator Calories your body burns at rest (Mifflin-St Jeor). Calorie Calculator Daily calories to maintain, lose or gain weight. TDEE Calculator Total calories you burn per day, by activity level. Body Fat Calculator Body fat % from tape measurements (US Navy method). Ideal Weight Calculator Ideal body weight by four standard formulas. Macro Calculator Daily protein, carb and fat targets in grams. Water Intake Calculator How much water to drink per day, in litres and cups. Due Date Calculator Estimated due date from LMP or conception date. Pregnancy Week Calculator How many weeks pregnant you are, and your trimester. Conception Date Calculator Likely conception date and fertile window. Ovulation Calculator Fertile window, ovulation day and next period dates. Heart Rate Zone Calculator Five training zones in bpm (Karvonen method). Running Pace Calculator Pace per km/mile, finish time and race splits.
🔢 Math
View all → Percentage Calculator % of a number, what percent X is of Y, and % change. Percentage Change Calculator Percentage increase or decrease between two values. Fraction Calculator Fraction arithmetic with simplified, step-by-step results. Ratio Calculator Simplify ratios and solve A:B = C:D proportions. Average Calculator Mean, median, mode and range of any number list. Standard Deviation Calculator Sample/population standard deviation and variance. Quadratic Equation Solver Roots of ax²+bx+c=0 with discriminant and steps. GCF & LCM Calculator GCF/HCF and LCM of two or more numbers. Random Number Generator Random numbers in any range, with no-repeat option.
📅 Date & Time
View all → Age Calculator Exact age from birth date, plus next-birthday countdown. Date Difference Calculator Days, weeks, months and years between two dates. Add or Subtract Days What date is N days/weeks/months from any date. Days Until Calculator Countdown in days and weeks to any future date. Business Days Calculator Working days between dates, weekends excluded. Hours Calculator Hours between two times, minus breaks. Week Number Calculator ISO week number and week date range for any date.
🔄 Unit Converters
View all → Length Converter mm, cm, m, km ↔ inches, feet, yards, miles. Weight Converter kg, g, tonnes ↔ pounds, ounces, stone. Temperature Converter Celsius ↔ Fahrenheit ↔ Kelvin, with formulas. Height Converter cm ↔ feet & inches, with a height chart. Area Converter m², ft², acres, hectares and more. Volume Converter Litres, ml ↔ gallons, cups, fluid ounces. Speed Converter km/h ↔ mph ↔ m/s ↔ knots. Data Storage Converter Bytes, KB, MB, GB, TB — decimal and binary. Pressure Converter bar ↔ PSI ↔ kPa ↔ atm ↔ mmHg. Energy Converter Joules ↔ calories ↔ kWh ↔ BTU. Fuel Economy Converter MPG (US/UK) ↔ L/100km ↔ km/L. Cooking Converter Cups, tbsp, tsp ↔ ml, oz — plus cups to grams.
🛠️ Everyday
View all → Grade Calculator Weighted course grade and required final-exam score. GPA Calculator Semester and cumulative GPA on the 4.0 scale. Word Counter Words, characters, sentences and reading time. Password Generator Strong random passwords, generated in your browser. Unit Price Calculator Price per unit comparison — find the better deal. Fuel Cost Calculator Trip fuel cost from distance, mileage and price. Electricity Cost Calculator Appliance running cost per day, month and year.