Calculators
These calculators handle the sums people do over and over and occasionally get wrong by hand. On the money side there is a loan and mortgage calculator that shows the monthly payment and total interest, plus VAT, discount, percentage, profit margin, break-even and ROI calculators. Marketers get ROAS and CAC/LTV calculators, freelancers get an hourly rate calculator, and there is a simple invoice generator for small jobs.
For health and daily life you will find BMI, calorie and water intake calculators, a pregnancy due date calculator, electricity and fuel cost calculators, a tip and bill splitter, and a GPA calculator for students. For time and dates there are age, date difference, business days, time duration and reading time calculators, a Ramadan countdown, a Pomodoro timer and a general countdown timer.
Every calculator runs in the browser and updates as soon as you enter your numbers. Financial and health results are estimates meant to help you understand and compare options; they are not a substitute for a bank's official offer or advice from a doctor or accountant when the decision matters.
Business Days Calculator
Calculate the actual number of business days between two dates, excluding weekends.
Calculators Open tool →Reading Time Calculator
Estimate how long it takes to read any text or article.
Calculators Open tool →Time Duration Calculator
Calculate the time duration between two times in hours and minutes.
Calculators Open tool →VAT calculator
Quickly and accurately calculate value-added tax on any amount.
Calculators Open tool →Mortgage calculator
Estimate your monthly mortgage payment based on amount, term, and rate.
Calculators Open tool →Percentage calculator
Calculate any percentage, or the difference between two numbers, in seconds.
Calculators Open tool →Pregnancy & due date calculator
Estimate your due date and track your pregnancy week by week.
Calculators Open tool →ROI calculator
Calculate the return on any investment to quickly assess its value.
Calculators Open tool →Water intake calculator
Find out how much water your body needs daily based on weight and activity.
Calculators Open tool →Ramadan countdown
Track the time remaining until Ramadan starts or ends, live.
Calculators Open tool →Age calculator
Calculate your exact age in years, months, and days from your birth date.
Calculators Open tool →BMI calculator
Find your body mass index and where it falls on the healthy range chart.
Calculators Open tool →Calorie calculator
Calculate your daily calorie needs based on your goal and activity level.
Calculators Open tool →Discount calculator
Work out the discounted price and your actual savings in one click.
Calculators Open tool →Tip & Bill Split Calculator
Enter the bill amount and tip percentage, and split it between people.
Calculators Open tool ←GPA Calculator
Add your courses, grades and credit hours to get your GPA instantly (4.0 scale).
Calculators Open tool ←Pomodoro Timer
Focus for 25 minutes, then rest — the Pomodoro technique for productivity.
Calculators Open tool ←Date Difference Calculator
Pick two dates and get the exact difference between them.
Calculators Open tool ←Break-Even Calculator
How many units do you need to sell to cover your fixed costs?
Calculators Open tool ←CAC / LTV Calculator
Check your business model health with the LTV-to-CAC ratio.
Calculators Open tool ←Electricity Cost Calculator
Calculate the cost of running any electrical device daily, monthly, and yearly.
Calculators Open tool ←Fuel Cost Calculator
Enter your trip distance and car consumption to know the fuel cost.
Calculators Open tool ←Freelance Hourly Rate Calculator
Calculate your hourly rate precisely, factoring in vacation and expenses.
Calculators Open tool ←Invoice Generator
Fill in your invoice details and get it ready to print or save as PDF.
Calculators Open tool ←Profit Margin Calculator
Enter product cost and sale price to get profit margin and markup.
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