Free Online Calculator with History, Memory, and Keyboard Shortcuts
Math Constants
3.1415926535
2.7182818284
1.6180339887
0.5772156649
1.4142135623
1.7320508075
2.2360679774
299792458
Examples
| Calculate | Button/Key Sequence |
| 2 x 3 | |
| (2 x 3) + 10 | |
| 2 x (3 + 10) | |
| √ 2 | |
| 1/1024 | |
| 2 x √ 2 | |
| -23 | |
| √ 32 + 42 |
|
| π x 102 | |
| 256 + 10% | |
| 5% of 25 | |
| 53 √ 2 + 6 |
Keyboard Shortcuts
| Button | Key | |
| 0 ... 9 | Digits | |
| Esc | All Clear | |
| Delete | Clear Entry | |
| Backspace | ||
| =orEnter | Equals | |
| . | Decimal Point | |
| + | Add | |
| - | Subtract | |
| *orX | Multiply | |
| / | Divide | |
| A | Memory Add | |
| C | Memory Clear | |
| R | Memory Recall | |
| S | Memory Subtract | |
| I | Invert +/- | |
| F1 | Square Root | |
| F2 | Percent | |
| F3 | Reciprocal 1/x | |
| F4 | Squared x² | |
| Alt-P | π - Pi | |
| Alt-E | e - Natural Log | |
| Alt-G | ϕ - Golden Ratio | |
| Alt-Y | γ - Euler's Constant | |
| Alt-S | √2 - Square Root 2 | |
| Alt-T | √3 - Square Root 3 | |
| Alt-F | √5 - Square Root 5 | |
| Alt-C | c - Light (m/s) | |
Settings
Bookmark this link for above settings . . .
Features
- 12-Digit display, 16-Digit math accuracy
- Simple left to right math calculations
- Fixed or floating point operation
- 4 Math operands (Add, Subtract, Multiply, Divide)
- 5 Math functions (Square Root, Squared, Reciprocal, Inverse, Percent)
- 4 Memory functions (Add, Subtract, Recall, Clear)
- Clear all, clear entry, and backspace
- Digit grouping 000's along with
international ',' and '.' use settings - Keyboard input with button feedback
- Reusable math calculation history
(last 100 calculations) - Savable settings, history, memory, and display
- Easy to repeat last operation
- Displays math expression
- Copy and paste values
- Clear error messages
- Resizable
About
Brand:Standard Calculator
Name:Calculator
Version:
Calculator excels in . . .
- Accuracy
- Robustness
- Ease of Use
- Speed
Perfect for use in meetings, classrooms,
and at home.
Works Like Windows 7 Calculator
Built on the logic of the Windows 7 Calculator — the version a lot of people quietly consider the best ever made. The equals key repeats the way it should, your last hundred calculations stay one click away, and every result behaves the way you expect. No clutter, no gimmicks, nothing to relearn.
Press Equals Again — It Repeats
Type 4 x 16 = and you get 64. Press = again and it keeps multiplying by 16: 1,024, then 16,384. Set the operation once and use the Equal button or key to repeat that operation on the
result. It's the quiet feature serious calculator users have always relied on, and the one most online calculators get wrong — How Equals Key Works
Your History — One Click Away
Every calculation is saved to a scrollable history — the last hundred, ready when you need them. Click any line and the calculator picks up right there, with that result back on the display so you can keep going — More About Calculation History
Run It Entirely From The Keyboard
Twenty-three keyboard shortcuts mean you never have to reach for the mouse. There are even eight mathematical constants — π, e, the golden ratio and more — a single keystroke away for the people who need them — View Keyboard Shortcuts
Leave and Return — It Remembers
With Save Work 'on' by default, everything you do is saved to your browser as it happens: your display, your history, your memory, your settings. Close the tab in the middle of a calculation and reopen it tomorrow — you can finish where you left off.
