Free Online Calculators

8 free calculators for everyday use. BMI, loan EMI, percentage, GST, age, tip, compound interest, and discount. Instant results, no sign-up required.

🏃 BMI

💰 Loan EMI

% Percentage

📋 GST

🎂 Age

🍽 Tip

📈 Compound

🏷 Discount

🏃 BMI Calculator

Body Mass Index — assesses whether your weight is healthy for your height.

Weight (kg)

Height (cm)

—

Enter values to calculate

UnderweightNormalOverweightObese

💰 Loan EMI Calculator

Calculate your monthly loan payment (Equated Monthly Installment).

Loan amount

Interest rate (% per year)

Tenure (months)

—

Monthly EMI

Total interest: —

Total payment: —

% Percentage Calculator

Calculate percentages, increase/decrease, and find what percentage one number is of another.

What is

% of

—

Answer

Percentage change

From

—

Change

📋 GST Calculator

Add or remove GST from any amount. Supports 5%, 12%, 18%, 28% rates.

Amount

GST rate

Operation

—

Total (with GST)

Base amount: —

GST amount: —

CGST: —

SGST: —

🎂 Age Calculator

Calculate exact age in years, months, days, hours and total days.

Date of birth

Calculate to date

—

Enter your date of birth

Total months: —

Total days: —

Total hours: —

Next birthday: —

🍽 Tip Calculator

Calculate tip and split the bill among friends.

Bill amount

Tip percentage

Split between (people)

—

Per person (including tip)

Tip amount: —

Total bill: —

Per person (bill only): —

📈 Compound Interest Calculator

See how your investment grows with compound interest over time.

Principal amount

Annual interest rate (%)

Years

Compounding frequency

—

Final amount

Interest earned: —

Growth: —

Principal: —

🏷 Discount Calculator

Calculate the final price after discount and how much you save.

Original price

Discount %

Additional flat discount

—

Final price you pay

You save: —

Effective discount: —

Original price: —