Perform basic arithmetic, advanced scientific calculations, check your Body Mass Index, calculate loan EMIs with full amortization schedules, and compute your semester CGPA โ all in one page, 100% free, no sign-up required.
No login needed100% browser-basedKeyboard supportedAccurate resultsWorks offline
Our basic calculator performs all essential arithmetic operations โ addition, subtraction, multiplication, and division โ with support for decimals and percentages. Whether you are balancing a budget, calculating tips, splitting bills, or solving homework problems, this tool delivers instant and accurate results.
How to Use
Click number buttons to enter values, tap an operator (+, โ, ร, รท), then the next number. Press "=" to see the result. Chain multiple operations (e.g., 5 + 3 ร 2). Use "C" to clear, "ยฑ" to toggle sign, "%" for percentage, and backspace to delete the last digit.
Key Features
Addition, subtraction, multiplication, division, and percentage
Decimal point support for precise calculations
Sign toggle (ยฑ) for negative numbers
Full keyboard support for fast desktop input
Expression history shown above the result
DEG
0
Full keyboard: digits, operators, (, ), ^, !, Enter, Esc
Free Scientific Calculator Online
Our scientific calculator supports trigonometric functions (sin, cos, tan and their inverses), logarithms (log base-10 and natural log), powers, roots, factorials, absolute values, and mathematical constants like ฯ and e. It supports both DEG (degree) and RAD (radian) modes.
Supported Functions
sin, cos, tan โ Trigonometric
sinโปยน, cosโปยน, tanโปยน โ Inverse trig
log โ Logarithm base 10
ln โ Natural logarithm
xยฒ, xโฟ, 10โฟ โ Powers
โx โ Square root
n! โ Factorial
|x| โ Absolute value
1/x โ Reciprocal
ฯ โ Pi (3.14159...)
e โ Euler's number
MC/MR/M+/M-/MS โ Memory
Example Calculations
sin(30) = 0.5
sqrt(144) = 12
5! = 120
log(1000) = 3
2**10 = 1024
sin(30)+cos(60) = 1
ln(2.718281828459045) = 1
Body Mass Index (BMI) Calculator
Enter your height and weight to calculate your BMI.
cm
ft/in
kg
Your BMI
--
--
--
1518.5253040
Underweight
< 18.5
Normal
18.5 โ 24.9
Overweight
25 โ 29.9
Obese
≥ 30
Free BMI Calculator
Body Mass Index (BMI) = weight (kg) รท heightยฒ (mยฒ). A BMI between 18.5 and 24.9 is generally considered normal. BMI does not account for muscle mass, bone density, or fat distribution.
Categories
Underweight (< 18.5): May indicate insufficient nutrition.
Normal (18.5 โ 24.9): Lowest health risks.
Overweight (25 โ 29.9): Increased risk for heart disease and diabetes.
Obese (≥ 30): Significantly higher risk for serious conditions.
Loan EMI Calculator
Calculate monthly EMI, total interest, and view amortization schedule.
โน
% per year
Monthly EMI
โน --
Total Interest
โน --
Total Payment
โน --
Principal: --
Interest: --
View Amortization Schedule
Month
EMI
Principal
Interest
Balance
Free Loan EMI Calculator
Uses the standard reducing balance formula: EMI = P ร r ร (1+r)n / ((1+r)n โ 1) where P = Principal, r = Monthly rate, n = Total months. Results match bank calculations.
Tips to Reduce EMI
Negotiate lower rate โ Even 0.5% saves thousands.
Larger down payment โ Reduces principal directly.
Prepay when possible โ Reduces future interest.
CGPA Calculator
Add subjects with credits and grades to calculate CGPA.
