Hold down the Alt key and type 251 on the numeric keypad. Release Alt , and √ appears. Note: This only works with the numpad, not the number row.
On the Windows or macOS calculator, the square root button looks like √x or ²√x . If you don't see it, make sure the calculator is set to "Scientific" mode in the menu. 5. On iPhone, iPad, and Android where is the square root button on a keyboard
Why? Because traditional keyboards were designed for typing text, not mathematical notation. The symbols we use daily—letters, punctuation, numbers—fit neatly. But special operators like √, π, or ∫ require a different approach. Hold down the Alt key and type 251 on the numeric keypad
Back at her desk, Alex learned the truth: the square root button isn’t missing—it’s just hidden in plain sight, tucked into codes, menus, and math tools. And from that night on, Alex never hunted for a physical key again. On the Windows or macOS calculator, the square
Note: This usually won't work using the number row above the letters; it requires the dedicated keypad. 2. The Mac Shortcut
Mobile keyboards don't show the square root symbol on the main layout.