Calculate your exact age in years, months, days, hours, and minutes. Find your zodiac sign, day of birth, and countdown to next birthday.
Calculate aspect ratios, scale dimensions proportionally, and find dimensions from any ratio. Perfect for video, image, and screen resolution calculations.
Calculate the mean, median, mode, and range of any set of numbers. Paste or type your numbers, get instant statistical results with a clear breakdown and data summary.
Calculate your Body Mass Index (BMI) instantly. Get health category, healthy weight range, and personalized insights based on your height and weight.
Estimate body fat percentage using U.S. Navy measurements. Get fat mass, lean mass, and category instantly for fitness tracking.
Calculate business days between dates or add/subtract working days. Supports US Federal holidays, custom holidays, and weekend configurations.
Calculate Compound Annual Growth Rate (CAGR) for your investments. Find the annualized return rate between beginning and ending values over a time period.
Calculate your daily calorie needs based on age, gender, height, weight, and activity level. Get personalized targets for weight loss, maintenance, or muscle gain with macro breakdown.
Calculate compound interest on savings and investments. See how your money grows over time with monthly or yearly compounding and regular contributions.
Calculate CPM (Cost Per Mille), CPC, CTR, and eCPM for advertising campaigns. Essential tool for marketers, publishers, and advertisers.
Calculate the specificity of any CSS selector. See the (a,b,c,d) breakdown for IDs, classes, attributes, and elements instantly.
Calculate the duration between two dates or add/subtract time periods from a date. Count workdays, weekends, and total days.
Calculate sale prices, find discount percentages, determine original prices, and compute stacked/double discounts. Essential for shopping and retail.
Estimate how long it takes to download a file based on your internet speed. Enter file size (MB/GB/TB) and connection speed (Mbps/Gbps) to get instant download time estimates.
Calculate how much an appliance costs to run per day, month, and year. Enter wattage, usage hours, and electricity rate to estimate your power bill. Includes common appliance wattages.
Calculate fractions online: add, subtract, multiply, and divide fractions or mixed numbers. Shows step-by-step solution with simplified results and decimal equivalent.
Calculate fuel cost for any trip based on distance, vehicle MPG or L/100km, and gas price. Estimate road trip gas expenses with US and metric unit support.
Calculate your semester and cumulative GPA instantly. Supports 4.0 scale, 10.0 CGPA scale, and percentage systems. Add courses, grades, and credits for accurate results.
Calculate GST amounts instantly. Add GST to base price or remove GST from inclusive price. Supports all GST rates with CGST and SGST breakdown.
Calculate the number of hours and minutes between two times. Perfect for payroll, work hours, shift duration, and time tracking. Supports 12-hour and 24-hour formats with optional break deduction.
Calculate your ideal body weight using four medical formulas — Hamwi, Devine, Robinson, and Miller. Enter your height and gender to see a recommended healthy weight range.
Calculate Equated Monthly Installments (EMI) for home loans, car loans, personal loans, and education loans. View amortization schedule with principal vs interest breakdown.
Calculate profit margin, markup percentage, and selling prices. Find margin from cost and revenue, convert between margin and markup, and plan pricing strategy.
Calculate monthly mortgage payments, total interest, and view a full amortization schedule. Supports fixed-rate loans with customizable down payment, interest rate, and loan terms.
Calculate estimated ovulation date, fertile window, implantation window, and next period date from your cycle information.
Calculate percentages easily: find X% of Y, what percent X is of Y, percentage change, and increase/decrease by percentage.
Calculate your estimated due date based on your last menstrual period, conception date, IVF transfer, or ultrasound. Track pregnancy progress with trimester timeline and milestones.
Calculate how long it takes to read any text at different reading speeds. Paste text or enter word count to get reading and speaking time estimates.
Calculate Return on Investment (ROI) instantly. Enter your investment cost and final return to see profit percentage, net gain, and annualized ROI for any investment period.
Convert between hourly, daily, weekly, biweekly, monthly, and annual salary. Calculate take-home pay with tax estimates, compare pay rates, and plan your finances.
Convert annual salary to hourly rate or hourly wage to yearly salary. See full pay breakdown by hour, day, week, bi-weekly, monthly, and annually with customizable work hours.
Calculate sales tax with separate state and local rates. Add tax to pre-tax prices or remove tax from tax-inclusive totals with a full breakdown.
Free online scientific calculator with trigonometric, logarithmic, exponential, and statistical functions. Supports degree/radian modes, memory operations, and calculation history.
Calculate returns on Systematic Investment Plan (SIP). See how monthly investments grow over time with expected returns, total invested amount, and wealth gained.
Calculate the best bedtime or wake-up time based on 90-minute sleep cycles. Find out when to sleep or wake up to feel fully rested and avoid grogginess.
Calculate stock trading profit or loss including brokerage fees and taxes. Find net gain, return percentage, and break-even price for your trades.
Calculate your Total Daily Energy Expenditure (TDEE) and BMR using the Mifflin-St Jeor equation. Get daily calorie targets for weight loss, maintenance, and muscle gain.
Calculate tips and split bills easily. Choose tip percentage, split between multiple people, and get per-person totals instantly.
Calculate how much water you should drink daily based on your body weight, activity level, and climate. Get personalized hydration recommendations in liters, ounces, and glasses.