Free Online Calculators

💶 VAT

Add or exclude VAT/Tax from any amount instantly.

🏷️ Discounts

Find out the final price and how much money you save on your purchases.

☕ Tips

Split the bill and calculate the tip quickly among friends.

🏦 Loans

Calculate your monthly payment, total interest, and the ideal term for your loan.

💱 Currency

Convert between over 30 global currencies with live exchange rates.

📈 Compound interest

Calculate how much your savings and investments will grow over time.

⚖️ BMI

Calculate your Body Mass Index and find your ideal weight range.

🔥 Calories (BMR)

Find out how many calories your body burns per day.

💧 Hydration

Discover how much water your body needs based on weight and activity.

🥩 Macros

Calculate your daily protein, carbs and fat based on your goal: fat loss, maintenance or muscle gain.

❤️ Heart rate

Calculate your max HR and 5 training zones based on your age. Includes Karvonen formula.

📊 Percentages

Calculate proportions, increases, and variations quickly.

✖️ Rule of three

Solve direct, inverse and compound proportions instantly.

📉 Mean & median

Calculate mean, median, mode and range of any list of numbers instantly.

🎓 Grade calculator

Calculate your simple or weighted grade average by credits or percentage.

📐 Area & perimeter

Calculate the area and perimeter of squares, triangles, circles and more shapes.

📐 Unit converter

Convert kilometers to miles, pounds to kilograms, and more.

📅 Date calculator

Calculate days between two dates, add days or find out how long until your next event.

🎂 Age calculator

Calculate your exact age in years, months and days, and find out how many days you have been alive.

⛽ Fuel cost

Calculate how much your road trip will cost in fuel, including tolls and split between passengers.

🥇 Gold value

Calculate how much your gold is worth based on karats and weight at the current market price.

🏛️ IBAN Validator

Check whether an IBAN number is correct and get a breakdown of the country and account number.

🏦 BIC/SWIFT Validator

Check a BIC/SWIFT bank code and identify the country and branch.

🧾 VAT Validator

Validate the VAT number of any European company and check the format by country.

❤️ Heartbeats

Find out how many times your heart has beaten since you were born.

🌬️ Breaths

Find out how many times your lungs have breathed since you were born.

👣 Steps

Find out how many steps you have taken and how many kilometres they add up to.

😴 Times slept

Find out how many nights you have slept and how many years you spent sleeping.

🐶 Dog age

Convert your dog's age to human years using the scientific formula.

🪐 Age on planets

Find out how old you would be on Mercury, Mars or Neptune.