How to use this text tool
- Paste your SMS message.
- Use auto-detect encoding.
- Check parts, remaining characters, and Unicode warnings.
#377 · Email & SMS Tools Text Tool
SMS Character Counter
Check SMS length, message splitting, and encoding before sending. This counter detects Unicode and emoji characters, calculates SMS segment count, shows remaining characters, and helps reduce unexpected multi-part text messages.
Text Input
Paste or upload text$
Recent History
No history yet.
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What this tool does
The result shows how many SMS segments your text will use and whether Unicode characters reduce capacity.
Character count + Unicode detection + emoji count + SMS segment calculation.
Use this before marketing texts, reminders, verification messages, and appointment notifications.
Example
Example: add an emoji to a short SMS. The tool may switch from GSM-7 to Unicode and show a smaller segment limit.
Use cases
- SMS campaign QA
- Appointment reminders
- Text alert length checks
- Emoji and Unicode detection
Tips for better output
- Avoid unnecessary emojis in cost-sensitive SMS.
- Keep important info in the first segment.
- Use short links carefully.
- Check Unicode before bulk sending.
Processing details
The calculator uses standard SMS segment assumptions: 160/153 for GSM-7 and 70/67 for Unicode single/concatenated messages.
Carrier gateways and SMS providers may count certain extended characters differently.
FAQ
How many characters fit in one SMS?
A standard GSM-7 SMS fits 160 characters in one message. Unicode messages often fit 70 characters because they require a different encoding.
Why did my text message become two SMS?
Long messages are split into multiple segments. Unicode characters or emojis can also reduce the per-segment capacity.
Do emojis reduce SMS length?
Yes. Emojis usually trigger Unicode encoding, which can lower the single-message limit from 160 characters to about 70 characters.
What is GSM-7 encoding for SMS?
GSM-7 is a compact character set used by many SMS systems for basic Latin letters, digits, and common punctuation.
How can I avoid SMS message splitting?
Shorten the message, remove emojis or special characters, and keep the copy within the current segment limit.
Related text tools
Tool modules
| Module | Included |
|---|---|
| Encoding | GSM-7 vs Unicode detection |
| Segments | Single and multi-part SMS estimate |
| Warnings | Emoji and Unicode capacity alerts |
| Export | TXT, CSV, JSON |
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