What ⤇ means
In formulas and technical diagrams, this mapsto arrow links a source to a destination.
A March 2000 ISO/Unicode chart labels it “maps to.” Unicode’s math-symbol data pairs it with , a longer rightwards double arrow from bar.
Font rendering of ⤇ can vary in stroke weight and spacing; the notation stays the same.
Formal and specialist, suited to mathematics, logic, programming, and technical diagrams.
Don't confuse it with
3Questions people ask
1Why does ⤇ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type or find ⤇
- Also called
- maps to · double mapsto · Mapsto
- Search it as
- mapping arrow · math arrow · Mapsto symbol
- Shows up in
- Anything that takes text · its shape is whatever your font draws
⤇\2907\Mapsto produces ⤇; lowercase \mapsto produces .Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.





