Gmail app subject (iPhone)
Gmail · iPhoneSearch in mail
Y
Your brand9:41
Last chance: 30% off everything…ends tonight at midnight
Your preview text shows here…
Gmail · iPhone · Subject line
Gmail app subject (iPhone) length checker (~37 characters)
About 37 characters show in the Gmail app on an iPhone 14. Modeled as a pixel box calibrated to the character count seen on the device, so wide and narrow letters are handled.
Last reviewed · How we measure
Gets cut
The Gmail app subject (iPhone) limit at a glance
- Limit
- about 37 characters (236px)
- How it’s counted
- By rendered width in Roboto at 14px, so wide letters use more room.
- When it’s too long
- Cut on screen with “…”
- Where the number comes from
- Measured on devices
- Last reviewed
How to write for it
- Under 35 characters is safe on almost every phone.
Where you’ll see the Gmail app subject (iPhone)
The Gmail app on iPhone shows the subject in bold under the sender, followed by preview text on the same line when there’s room.
Before and after
Your order has shipped and is on its way to you
Your order is on its way
Common mistakes
- Putting the offer or the deadline at the end of the subject, where the inbox cuts it.
FAQ
Gmail app subject (iPhone): questions
What is the Gmail app subject (iPhone) limit?
About 37 characters (236px). About 37 characters show in the Gmail app on an iPhone 14. Modeled as a pixel box calibrated to the character count seen on the device, so wide and narrow letters are handled.
How many characters of subject show in the Gmail app on iPhone?
About 37 on an iPhone 14, measured by width. Capitals and wide letters fit fewer.
What happens if my subject line is too long?
Gmail · iPhone still shows it, but cuts it with “…”, and 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.