Copy and paste the increment ∆ with one click
Last reviewed on October 31, 2026
∆ is the increment sign, an upright triangle. It stands for a change or difference in a quantity, as in ∆x. It looks like the Greek capital delta but has its own code point as a math operator.
Its official Unicode name is Increment. Browse the Mathematical Symbols page for related characters.
Type 2206 then press Alt+X in Word; in other apps, copy ∆ from this page and paste it. It has no classic Alt code. You can also copy ∆ straight from this page.
Press Option+J.
It is Unicode code point U+2206, named Increment. In HTML, use ∆.