How to use this text tool
- Paste or type your text into the input box.
- Choose the mode and optional setting that matches your use case.
- Click Process Text or keep live preview enabled.
- Review the result, quality score, and exportable report.
#481 · Utility & Safety Text Tool
SMS Segment Calculator
Calculate SMS billing segments, encoding type, remaining characters, and Unicode cost triggers before sending a message.
Text Input
Paste, type, or upload textoptional
Recent History
No history yet.
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What this tool does
Calculate SMS segments instantly using GSM-7 and Unicode limits. Detect billing units, remaining characters, extended GSM characters, and Unicode triggers.
This tool estimates SMS segments and billing units from message length and encoding rules.
GSM-7 uses 160 characters for one SMS and 153 for concatenated SMS. Unicode uses 70 and 67.
Example
Input a message, choose auto detection, then review segments, remaining characters, and Unicode trigger characters.
Use cases
- Bulk SMS cost control
- OTP message length checks
- Marketing SMS optimization
- Support message preparation
Tips for better output
- Keep SMS under one segment when cost matters.
- Replace curly quotes and emoji to avoid Unicode fallback.
- Use the remaining character count before sending.
Processing details
This page performs all analysis in the browser and returns processed output, statistics, CSV rows, and JSON data without uploading your text.
Results are practical diagnostics. For regulated telecom, security, accessibility, or production encoding work, verify against your target platform as well.
FAQ
How many SMS segments is my message?
Use SMS Segment Calculator with representative input, select the relevant options, and compare the processed output with the original text.
Why did my SMS become 2 segments?
The result in SMS Segment Calculator depends on the exact input, selected options, encoding, and formatting. For “Why did my SMS become 2 segments?”, compare the original and processed text and review any warnings shown by the tool.
How do I check SMS character count before sending?
Paste the relevant text into SMS Segment Calculator, choose the options that match your goal, and run the tool. Review the output and metrics to check sms character count before sending before copying or downloading the result.
How many Unicode characters fit in one SMS?
Use SMS Segment Calculator with representative input, select the relevant options, and compare the processed output with the original text.
How do I reduce SMS billing units?
Paste the relevant text into SMS Segment Calculator, choose the options that match your goal, and run the tool. Review the output and metrics to reduce sms billing units before copying or downloading the result.
Related text tools
Tool module details
| Module | Details |
|---|---|
| Standard | GSM-7 / Unicode segment rules |
| Risk | Unicode fallback increases cost |
| Export | TXT, CSV, JSON reports |
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