Your simple and efficient online calculator
The evolution of calculators is fascinating, from the first abacuses in Mesopotamia to modern digital calculators. The first mechanical calculator, the Pascaline, was invented by Blaise Pascal in 1642. This innovation revolutionized mathematical calculation, paving the way for the modern technologies we use today.
Online calculators offer many advantages over physical calculators. They are accessible anywhere, free, and update automatically. No need to worry about batteries or carrying an extra device. Plus, they adapt perfectly to all screens, whether you're on computer, tablet, or smartphone.
Mathematics is everywhere in our daily lives: shopping, calculating a discount percentage, managing a budget, or even following a cooking recipe. A reliable calculator then becomes an essential tool to facilitate these daily calculations and make informed decisions about personal finances.
Easily perform additions (+), subtractions (-), multiplications (×), and divisions (÷). Simply enter your numbers and select the desired operation.
Use parentheses to group operations and percentage for more complex calculations. Parentheses help define the order of operations.
Use the 'C' key to clear and start over. For decimals, use the point. Results are automatically rounded to two decimal places for clarity.
To calculate 15% of 80, enter 80 × 15 ÷ 100 or use the % key directly. For discounts, subtract the percentage from the total.
For more precision in your calculations, don't hesitate to use decimal numbers. Our calculator handles rounding automatically.
Parentheses are essential for complex calculations. For example, (2 + 3) × 4 will give a different result than 2 + (3 × 4).
Our calculator offers precision up to 10 decimal places internally, with display rounded to 2 decimal places for better readability.
No, our calculator requires an internet connection as it runs directly in your browser.
No, we don't store any calculation history. Everything is processed locally in your browser to ensure your privacy.