Calculators for loans, land, age, health and grades

Free, fast tools built for everyday decisions in Bangladesh and India. Results update as you type — no sign-up, nothing to install.

No calculator matches that search. Try a simpler word such as “loan”, “tax” or “date”.

Loans & savings

Loan installments, deposits and long-term investments.

EMI CalculatorMonthly installment for home, car and personal loans SIP CalculatorGrowth of a monthly investment, with step-up FD / FDR CalculatorFixed deposit maturity and net interest DPS / RD CalculatorMaturity value of a monthly deposit scheme PPF CalculatorPublic Provident Fund maturity (India)

Tax & salary

Income tax, VAT, provident fund, pension and Zakat.

Income Tax CalculatorBangladesh and India slabs for 2026-27 VAT / GST CalculatorAdd or remove VAT and GST from a price GPF CalculatorGeneral Provident Fund for government staff Pension & Gratuity (BD)Bangladesh government pension and anutoshik Gratuity Calculator (India)Payment of Gratuity Act formula Zakat CalculatorNisab check and 2.5% Zakat in taka

Date & land

Exact ages for job forms, date gaps and land measurements.

Age CalculatorAge in years, months and days on any date Date Duration CalculatorDays, weeks and working days between dates Land Area ConverterDecimal (shotok), katha, bigha, acre, sq ft

Health

Body weight, energy needs, hydration and pregnancy dates.

BMI CalculatorBody mass index and healthy weight range BMR CalculatorCalories your body burns at rest Calorie CalculatorDaily calories to keep, lose or gain weight Water Intake CalculatorHow much water to drink each day Pregnancy Due DateDue date, current week and trimesters

Education & everyday maths

Board results, university grades and percentages.

SSC / HSC GPA CalculatorGPA with the 4th subject bonus CGPA CalculatorSemester GPA and cumulative CGPA CGPA to PercentageUGC 4-point and CBSE 10-point scales Percentage CalculatorPercent of, percent change and discounts

Why use Calculator24?

Every calculator on this site was built for the way people in Bangladesh and India actually calculate: lakh-and-crore number formatting, local land units such as katha and bigha, Bangladesh board and UGC grading, government GPF and pension rules, and current tax slabs for both countries. Each page explains the formula behind the result, so you can check the maths yourself.

The calculators run entirely in your browser — the numbers you type are not sent to us or stored. Rates such as tax slabs and interest rates change from time to time; where a figure depends on a government decision, the page says so and tells you where to verify it.