Detect Standard vs Unicode, segment count, and highlight non-GSM characters
Message
Waiting...
Tip: emojis, smart quotes, long dashes, and some symbols will switch to Unicode
Live calculation
Preview (Unicode characters highlighted)
Standard (GSM 7-bit): 160 chars per SMS (or 153 per part when concatenated).
Unicode (UCS-2): 70 chars per SMS (or 67 per part when concatenated).
Note: in Standard, some extended GSM characters count as 2 characters.
Results
0 parts
Encoding
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Total characters
User-visible characters
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Standard units (GSM septet count)
Extended chars count as 2
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SMS credits required
Parts (segments)
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Per-SMS limit
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Remaining in current part
Before next credit
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Unicode characters found
Fix by replacing/removing
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The highlighted characters are not supported by Standard GSM. Replace them with normal quotes, hyphens, or remove emojis to stay Standard.