const.id

html-entity

∑

∑

∑

HTML named character reference ∑ maps to U+2211.

Mapping

Named reference
∑
Code point(s)
U+2211
Decimal
8721
Characters
∑

Numeric character references

Named
Decimal
Hex

Usage

Prefer a named reference when the character must survive encoding mistakes or is awkward to type. Numeric references (∑) are always valid HTML for the mapped code point(s).

Related

Unicode

U+2211

Same character

Other entities

Entities that produce this code point

Source

Unicode
16.0.0
WHATWG
snapshot 2026-08-02