Calculate. Learn. Plan.
Simple finance and health tools that show their working, so you can check the answer instead of trusting it.
Finance calculators
Loans, investments, pricing, tax and payroll dates.
EMI calculator
Monthly loan payment and full amortization schedule.
Compound interest
How a balance grows, year by year.
Mortgage calculator
Home loan payment with tax and insurance.
SIP calculator
Returns on a monthly investment plan.
Salary calculator
Gross pay to take-home, broken down.
GST calculator
Add tax to a price or strip it out.
ROI calculator
Total and annualized return on investment.
Profit margin
Gross margin, net margin and markup.
Discount calculator
Sale price and what you save.
Percentage calculator
Three percentage questions, one page.
Tip calculator
Tip, total and the split per person.
Break-even point
Units you must sell to cover costs.
Date calculator for HR
Working days, notice periods and service.
Work experience
Add every job, get the total experience.
Health calculators
Body composition, daily needs and timing. Not medical advice.
BMI calculator
Body mass index on a color-coded scale.
Calorie calculator
BMR, TDEE and a macro split.
Age calculator
Exact age in years, months and days.
Water intake
Daily target for your weight and climate.
Sleep calculator
Bedtimes that land between cycles.
Body fat percentage
US Navy method estimate.
Ideal weight
Healthy range across four formulas.
Due date calculator
Estimated due date and current week.
Why these are different
No signup, ever
Nothing is stored on a server. Every calculation runs in your browser.
Results you can share
Your numbers live in the link, and any result can be saved as an image.
The math is visible
Open the working panel to see the formula with your own figures filled in.
Install it on your phone
Add it to your home screen and it keeps working with no connection.