Ω (U+03A9) or Ω (U+2126) Apple: ALT + (lowercase) z
The Unicode Standard states that the U+2126 Ω ohm sign is included in Unicode only for backward compatibility reasons. To represent ohms, the U+03A9 Ω greek capital letter omega is preferred.
Symbol for ohm
- The upper case letter omega (ωμέγα), the last letter of the modern Greek alphabet.
- The upper case letter omega (Ω) is used as the mathematical notation or symbol for the last place in a set or group of items.
Ω • (O)
- The number 800 in Greek numerals.
- The number 800,000 in Greek numerals.