Calculators

Free calculators for math, finance, health, and engineering.

Education

1
🎓

GPA Calculator

Compute your Grade Point Average.

Energy

3
💡

Electricity Bill Calculator

Estimate your electricity bill based on appliance usage and local rates.

🔌

Energy Consumption Calculator

Calculate the energy (kWh) used by your electrical appliances.

💲

Energy Cost Calculator

Calculate the cost of energy consumption for your devices.

Financial

7
🏠

Mortgage Calculator

Estimate your monthly mortgage payments.

📈

Compound Interest Calculator

Calculate the future value of an investment with compound interest.

💰

Simple Interest Calculator

Calculate interest on a principal amount at a fixed rate.

🏷️

Discount Calculator

Calculate the final price after applying a discount.

📈

Inflation Calculator

Calculate the future value of money based on inflation rates.

🇮🇳

GST Calculator India

Calculate GST (Goods and Services Tax) with CGST and SGST breakdown. Add or remove GST instantly.

💵

Tip Calculator

Calculate gratuity and split bills easily.

Health

2
⚖️

BMI Calculator

Find your Body Mass Index (BMI).

🎂

Age Calculator

Calculate your exact age in years, months, and days.

Mathematics

14
📊

Percentage Calculator

Calculate percentages easily.

🔄

Number Converter

Convert numbers between decimal, binary, octal, and hex.

🧪

Scientific Calculator

Perform advanced calculations with this powerful open-source tool.

📐

Trigonometry Calculator

Solve right triangles and calculate trigonometric functions with ease.

🔢

Matrix Calculator

Perform matrix operations like addition, multiplication, and finding the inverse.

📐

Area Calculator

Calculate the area of various geometric shapes.

⭕

Circle Area Calculator

Calculate the area of a circle.

🔺

Triangle Area Calculator

Calculate the area of a triangle.

⬛

Square Area Calculator

Calculate the area of a square.

▭

Rectangle Area Calculator

Calculate the area of a rectangle.

⏢

Trapezoid Area Calculator

Calculate the area of a trapezoid.

▱

Parallelogram Area Calculator

Calculate the area of a parallelogram.

🔷

Rhombus Area Calculator

Calculate the area of a rhombus.

🛑

Polygon Area Calculator

Calculate the area of a regular polygon.

Reference

1
🧪

Periodic Table of Elements

Interactive periodic table with element details.

Unit Converters

10
📏

Length Converter

Convert between meters, feet, inches, miles, and more.

⚖️

Weight Converter

Convert between kilograms, pounds, ounces, and grams.

🌡️

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin.

🚀

Speed Converter

Convert between mph, kph, m/s, and knots.

🥛

Volume Converter

Convert between liters, gallons, cups, and more.

🗺️

Area Converter

Convert between square meters, acres, hectares, and sq feet.

🎈

Pressure Converter

Convert between Pascal, Bar, PSI, and Atmosphere.

⚡

Power Converter

Convert between Watts, Kilowatts, and Horsepower.

🔋

Energy Converter

Convert between Joules, Calories, kWh, and BTU.

💾

Data Storage Converter

Convert between Bytes, KB, MB, GB, and TB.