Perform all basic and advanced calculations online with history tracking. Save results easily for later use and reference quickly.
| Number 1 | Operator | Number 2 | Result |
|---|---|---|---|
| 5 | + | 3 | 8 |
| 10 | - | 4 | 6 |
Standard arithmetic operations: addition (+), subtraction (-), multiplication (*), and division (/). Division by zero is handled with error.
Q1: Can I save calculation history?
A1: Yes, all calculations appear on the paper tape section for review.
Q2: Can I download results?
A2: Yes, use CSV or PDF buttons to save your history externally.
Q3: Are advanced operations supported?
A3: Basic operations are included. Advanced formulas can be added later easily.
Q4: How is divide by zero handled?
A4: It shows an error message instead of crashing the calculator.
Q5: Can I use on mobile?
A5: Yes, the layout adjusts to single column for smaller screens.
Q6: Is there a formula reference?
A6: Yes, the formula section explains how each operation works.
Q7: How to clear the tape?
A7: Reloading the page resets the tape and calculation history.
Q8: Can I customize operators?
A8: Yes, you can add more operators in the PHP switch statement.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.