Basic Calculators
All-in-One Utility Hub
🧮 Basic Calculator
Simple, Fast & Free Online Calculator with History
0
📜 Calculation History
No calculations yet
📖 How to Use the Basic Calculator — Complete Guide
Perform Quick Arithmetic Calculations Instantly — Free Online Basic Calculator by All-in-One Utility Hub. This simple yet powerful calculator handles everyday math: addition, subtraction, multiplication, division, and percentages. It features a clear display, calculation history, copy/paste support, and keyboard shortcuts.
🧮 How to Perform Calculations
- Click the number buttons (0‑9) or type on your keyboard to enter digits.
- Click an operator (+, −, ×, ÷) to build your expression.
- Press = (or Enter) to see the result instantly.
- Use AC to clear everything, or ⌫ to delete the last character.
- The % button divides the current number by 100 (for quick percentage calculations).
- Your last 50 calculations are saved automatically in the History section below.
- Click any history item to reload that calculation, or use Download to export the history as a text file.
⌨️ Keyboard Shortcuts
| Key | Action |
|---|---|
| 0‑9 | Enter numbers |
| +, -, *, / | Operators |
| Enter or = | Calculate result |
| Backspace | Delete last character |
| Escape | Clear all (AC) |
| . | Decimal point |
Real‑Time Display
Shows both the expression and the current number.
Full History
Last 50 calculations saved locally.
Keyboard Support
Use your physical keyboard for speed.
Download History
Export all calculations as a text file with a custom name.
💡 Pro Tip: Use the % button to quickly find percentages. For example,
200 + 10% adds 10% of 200 (resulting in 220).❓ FAQ
How do I clear the calculator?+
Click the AC button or press the Escape key on your keyboard.
Can I see my past calculations?+
Yes! The history section below the calculator stores your last 50 calculations. Click any item to reload it.
Does the calculator work with keyboard?+
Absolutely. You can type numbers, operators (+, -, *, /), press Enter for equals, Backspace to delete, and Escape to clear.
Can I download my calculation history?+
Yes, click the Download button above the history list. You can enter a custom file name when prompted.
Is this calculator free?+
100% free, part of All‑in‑One Utility Hub.