23 free calculators

Calculate. Learn. Plan.

Simple finance, health and everyday tools that show their working, so you can check the answer instead of trusting it.

Free to use Instant results No sign-up needed Works offline

Most used calculators

The tools people open most, one click away.

Monthly loan payment and full amortization schedule.

Body mass index on a color-coded scale.

Semester GPA, CGPA and CGPA to percentage or marks.

Marks percentage, percent of and change.

Gross pay to take-home, broken down.

Exact age in years, months and days.

Add or remove 18% sales tax, or any rate.

Add every job, get the total experience.

Every tool on the site, grouped by what you are working out.

Loans, investing, salary, tax, Zakat and business margins.

BMI, calories, body fat, hydration, sleep and pregnancy.

GPA and CGPA, percentages, age, dates and work experience.

Nothing is stored on a server. Every calculation runs in your browser.

Your numbers live in the link, and any result can be saved as an image.

Open the working panel to see the formula with your own figures filled in.

Add it to your home screen and it keeps working with no connection.