Is this calculator completely free to use?

Yes, this online calculator is completely free to use with no registration, downloads, or subscriptions required. No freemium features - everything is free!

What mathematical operations does this calculator support?

The calculator supports basic arithmetic (addition, subtraction, multiplication, division), square root (√), reciprocal (1/x), percentage calculations (%), and sign toggle (±). It also includes comprehensive memory functions.

How do the memory functions work?

Memory functions include MC (Memory Clear), MR (Memory Recall), M+ (Memory Add current value to memory), and M- (Memory Subtract current value from memory). When memory contains a value, an 'M' indicator appears on the display.

Can I use keyboard shortcuts with this calculator?

Yes! You can use number keys (0-9), operators (+, -, *, /), Enter or = for calculation, Escape or C for clear all, Backspace for clear entry, R for square root, I for reciprocal, and M for memory recall.

Does the calculator work on mobile devices?

Yes, the calculator is fully responsive and works perfectly on mobile phones, tablets, and desktop computers. The interface adapts to your screen size for optimal usability.

Advanced Online Calculator with Memory

Advanced Online Calculator with Memory Standard Calculator with Memory

Standard Calculator with Memory