Calculators
Six everyday calculators. Everything runs in your browser — no numbers are sent anywhere.
EMI Calculator
Estimate the monthly EMI, total interest and total repayment for a home, car or personal loan.
MoneyGST Calculator
Quickly calculate the GST amount and final price, whether GST is to be added or is already included.
Everyday LifeAge Calculator
Enter a date of birth and get the exact age as of today, or as of any other date — useful for forms and eligibility checks.
Everyday LifeDiscount Calculator
Calculate how much you save and what you finally pay when a percentage discount is applied.
MoneySimple Interest Calculator
Work out simple interest and the total amount payable or receivable for a given principal, rate and time.
MoneyCompound Interest Calculator
Work out the maturity amount and total interest when interest compounds yearly, half-yearly, quarterly or monthly — with a year-by-year growth breakdown.
EducationCGPA Calculator
Convert your grades to CGPA or calculate CGPA from multiple semester grades.
How Samjho Calculators Work
Every calculator on Samjho runs entirely in your web browser using JavaScript. When you enter a loan amount, interest rate, or date of birth, the calculation happens locally on your device. Your numbers are never sent to any server, stored in any database, or shared with any third party.
Close the page and your numbers disappear. Refresh the page and your numbers disappear. This is by design — Samjho calculators are tools for quick estimates, not financial records.
What You Can Calculate
Our calculators cover the most common everyday financial and academic calculations for Indians:
- EMI Calculator — Estimate monthly loan instalments for home, car, or personal loans. See total interest and repayment amount.
- GST Calculator — Add or remove GST from any amount. Works for 5%, 12%, 18%, and 28% GST rates.
- CGPA Calculator — Convert your CGPA to percentage and vice versa. Useful for job applications and college admissions.
- Age Calculator — Find your exact age in years, months, and days from any date of birth. Useful for form filling and eligibility checks.
- Discount Calculator — See how much you save during a sale and what the final price is after the discount.
- Simple Interest Calculator — Calculate interest on savings or loans using the simple interest formula.
Accuracy Notice
These calculators give you quick estimates for personal planning. For official calculations (bank loan approvals, tax filings, government form submissions), always use the calculator or tool provided by the relevant authority — your bank, the Income Tax Department, or the calculator on the official portal.