70+ Free Online Calculators Calculations,
simplified.
Find the best free online math tools for money, health, school, and work. All tools are fast, safe, and easy to use.
Finance
Mortgage, loan, investment, and paycheck calculators.
Estimate monthly payments and interest for home loans.
Calculate monthly auto loan payments with trade-in and down payment.
Project the future value of investments over time.
Estimate your take-home pay after taxes and deductions.
Health
BMI, calorie, and metabolic rate calculators.
Education
Grade, GPA, and academic performance calculators.
Calculate your weighted or unweighted course grade from assignments.
Calculate your Grade Point Average on a 4.0 scale.
Convert standard GPA values to percentage points on a 4.0, 5.0, or 10.0 scale.
Convert percentage to GPA on a 4.0, 5.0, or 10.0 scale.
Math
Percentage, scientific, and graphing calculators.
Calculate percentage increases, decreases, and more.
Advanced calculator with trigonometry, logarithms, and scientific functions.
Plot mathematical functions and visualize equations on an interactive graph.
Add, subtract, multiply, and divide fractions and mixed numbers.
Utilities
Age, time, and everyday utility calculators.
Find your exact age in years, months, and days.
Calculate exact age difference between two people and test relationship compatibility rules.
Convert time units and calculate durations between dates.
Calculate the difference between two dates or add/subtract days from a date.
Conversion
Length, weight, temperature, data, and time converters.
Convert between meters, kilometers, feet, inches, miles, and more.
Convert weights between kilograms, pounds, ounces, grams, and more.
Convert heights between feet/inches (Imperial) and centimeters (Metric).
Convert between liters, gallons, cups, fluid ounces, and milliliters.
Embed Widgets on Your Website
Provide your website visitors with interactive EMI, GST, SIP, Mortgage, FIRE, and Rent vs Buy calculators. Custom themes, responsive resizing, and completely free.
Your Guide to Free Online Math Tools
Welcome to Numlator. We make math easy for you. You can use our free tools to check your money, health, and school grades. We keep all your data safe. You get your answers right away in your browser.
Many other tools are slow and show too many ads. We fixed this. Our tools run fast on your own device. We do not track you. You can trust our safe, easy design to help you solve math problems fast.
Tools for Home Loans and Money
Buying a house or a car is a big deal. You need to know your interest rates and monthly costs. Our free home loan tools show you exactly what you will pay each month. This helps you plan your budget. If you want to know more about safe loans, check the Consumer Financial Protection Bureau rules.
We also help you check your paycheck. Knowing your tax and take-home pay helps you save money for the future. You can use our compound interest math to see how your savings will grow over time. We use the real compound interest rules to show you the exact numbers.
Health, BMI, and Basic Math
We also offer fast math tools for work and school. You can swap miles to kilometers, or pounds to grams. Our tools follow real rules set by groups like the National Institute of Standards and Technology. This means you always get the right answer for your homework or job.
For your health, we offer BMI and calorie tools. These help you set safe goals for diet and fitness. We use the real math rules given by the World Health Organization to make sure you get safe, healthy advice.
School Grades and Tests
Students and teachers love our free grade tools. You can check your GPA, find out what you need on your final exam, or solve big math problems. Our tools help you check your school work fast. We test every single math tool to make sure it is perfect.
We promise to keep our site free, fast, and safe. There are no hidden fees. We do not steal your data. Try our tools today to see how easy math can be.