How to Write Equations in Word

How to Write Equations in Word
Typing maths as x^2 + 1/2 in normal text looks messy. Word's built-in equation editor turns it into properly formatted maths — fractions stacked, powers raised, square root signs that stretch.

Quick reference

What you wantType in an equation
New equationAlt + =
Powerx^2
Subscriptx_1
Fraction1/2 then Space
Square root\sqrt(x) then Space
Greek letters\pi, \alpha, \theta

1. Insert an equation

Press Alt + =, or go to Insert → Equation. A box appears that says Type equation here, and the Equation tab opens on the ribbon.

2. Type it naturally

Word converts as you type when you press Space:
• x^2 → x²
• a_n → aₙ
• (a+b)/c → a stacked fraction
• \sqrt(x+1) → a square root over x + 1
• \pi r^2 → πr²
• \times, \div, \pm → ×, ÷, ±
• \le, \ge, \ne → ≤, ≥, ≠

3. Use the Equation toolbar

Prefer to click? The Equation tab has templates in the Structures group: Fraction, Script, Radical, Integral, Large Operator, Bracket, Matrix and more. Choose one and fill in the dotted boxes.
The Symbols gallery has Greek letters, arrows and operators.

4. Ready-made equations

Click the arrow under Insert → Equation for common formulas — the area of a circle, Pythagoras, the quadratic formula and binomial theorem. Insert one and edit it.

5. Handwrite it

Go to Equation → Ink Equation (or Draw → Ink to Math). Write the equation with your mouse, finger or stylus. Word shows a live preview; click Insert when it's right.

6. Inline or on its own line

An equation on its own line is display style. To place one inside a sentence, click the equation's arrow and choose Change to Inline.

Troubleshooting

Letters are all in italics. That's normal for maths variables. Put words in "quotation marks" inside the equation to keep them upright.
Equations look different in older Word files. Old documents may use Equation Editor 3.0, which is no longer supported. Recreate them with Insert → Equation.

Wrapping up

Alt + =, type x^2 or 1/2, press Space. It's quicker than it looks.