Simple, fast, no-signup tools you can use or embed on your own site.
Free calculators for finance, health, math, and everyday life.
Full-featured online calculator with basic arithmetic, percentages, memory functions, and keyboard support.
Available NowCalculate your Body Mass Index instantly. Supports both imperial and metric units with health category ranges.
Available NowEstimate monthly mortgage payments with taxes, insurance, and PMI. View full amortization schedules.
Available NowEstimate your daily caloric needs based on age, gender, height, weight, and activity level using Mifflin-St Jeor.
Available NowCalculate your weighted or unweighted grade average. Find out what score you need on your final exam.
Available NowCalculate monthly payments and total interest for personal loans, student loans, or any fixed-rate loan.
Available NowCalculate your exact age in years, months, weeks, days, hours, and minutes from your date of birth.
Available NowSee how your money grows with compound interest. Adjust principal, rate, time, and compounding frequency.
Available NowCalculate your cumulative GPA on a 4.0 scale. Add courses with grades and credit hours for accurate results.
Available NowEstimate monthly car payments with trade-in value, down payment, sales tax, and interest rate comparisons.
Available NowCalculate car loan payments for new or used vehicles. Compare financing options and see total cost of ownership.
Available NowAdd or subtract time durations. Calculate the difference between two times in hours, minutes, and seconds.
Available NowCalculate tip amounts for any bill size. Split the total evenly among friends with custom tip percentages.
Available NowCalculadora en línea gratis con funciones básicas y científicas. Soporte para teclado y pantalla táctil.
Available NowEstimate your monthly car payment based on vehicle price, down payment, trade-in value, and loan terms.
Available NowAdvanced scientific calculator with trig, log, exponent, factorial, and parentheses support. Keyboard enabled.
Available NowPlot and visualize mathematical functions interactively. Supports multiple equations, zoom, and pan.
Available NowCalculate how inflation affects purchasing power over time. See what past dollars are worth today using CPI data.
Available NowProject the future value of your investments with initial deposit, monthly contributions, and compound growth.
Available NowEstimate your take-home pay after federal tax, state tax, Social Security, and Medicare deductions.
Available NowCalculate percentages easily. Find percent of a number, percentage change, percentage difference, and more.
Available NowCalculate cubic yards and bags of concrete for slabs, footings, columns, and stairs. Includes waste factor.
Available NowCalculate the number of days between two dates, or add/subtract days, weeks, months, and years from a date.
Available NowEstimate your pregnancy due date based on last menstrual period or conception date. See trimester milestones.
Available NowAdd, subtract, multiply, and divide fractions and mixed numbers. Shows simplified results and step-by-step work.
Available NowFull scientific calculator with trig, log, exponential, factorial, and constant support. Works with keyboard.
Available NowCalculate your Total Daily Energy Expenditure (TDEE) using BMR and activity multiplier for weight management.
Available NowEnter two names and see your love compatibility score. A fun, lighthearted tool — just for entertainment!
Available NowGenerate detailed amortization schedules for any loan. See monthly principal, interest, and remaining balance.
Available NowCalculate your ideal calorie deficit for weight loss. Based on TDEE with timeline projections and macro splits.
Available NowSimple, clean online calculator for everyday math. Supports percentages, memory, and keyboard shortcuts.
Available NowPlan your retirement savings. Estimate how much you need based on current age, savings, income, and goals.
Available NowClick any widget to use it — all free, no signup required.
Calculate monthly mortgage payments, total interest, and view a full amortization schedule. Supports property tax and insurance estimates.
Available NowCreate countdown timers to any date. Track multiple events with live days, hours, minutes, and seconds. Saved in your browser.
Available NowCheck current conditions and a 7-day forecast for any location. Uses your GPS or search by city. No API key required.
Available NowLive analog and digital clock with world timezone support. View the time in 18 major cities around the globe.
Available NowInteractive monthly calendar with simple event notes. Navigate months, see today highlighted, and save notes in your browser.
Available NowOne search bar, multiple engines. Search Google, Bing, DuckDuckGo, YouTube, or Wikipedia from a single clean interface.
Available NowPaste any Spotify link to generate an embeddable player. Works with tracks, albums, playlists, artists, and podcasts.
Available Now