Gmail subject (desktop)
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Gmail · Web · Subject line
Gmail subject (desktop) length checker (~88 characters)
About 88 characters at a 1400px-wide window; the preheader fills whatever is left. Modeled as a pixel box calibrated to the character count seen on the device, so wide and narrow letters are handled.
The Gmail subject (desktop) limit at a glance
- Limit
- about 88 characters (562px)
- How it’s counted
- By rendered width in Roboto at 14px — wide letters use more room.
- What happens when it’s too long
- Cut on screen with “…”
- Where the number comes from
- Measured on devices
How to write for it
- A short subject leaves room for the preheader on the same line.
FAQ
Gmail subject (desktop): questions
What is the Gmail subject (desktop) limit?
About 88 characters (562px). About 88 characters at a 1400px-wide window; the preheader fills whatever is left. Modeled as a pixel box calibrated to the character count seen on the device, so wide and narrow letters are handled.
What happens if my subject line is too long?
Gmail · Web still shows it, but cuts it with “…” — anything past the cut is invisible to most people.
Why does the character count change?
This screen cuts by width, not characters. Wide letters like W and M use up to four times the room of i or l, so two texts of the same length can be cut in different places.
Can I check many at once?
Yes — upload a CSV or Excel file on the Bulk page and Truncly checks and fixes every row, then gives the file back with fixes added.