Free tool

SMS Counter

Enter your message to see its character count, encoding, and billable SMS segments instantly.

11 character(s) remaining in this SMS

1SMS
Characters
58
Encoding
Unicode
Limit/segment
70
Units
59

Unicode detected (emoji or special symbol) — the limit is now 70 per segment. Remove it to fit more text in each SMS.

Calculate sending cost

Estimate bulk sending costs — from R$0.07/SMS.

How SMS counting works

SMS uses two alphabets. GSM-7 fits 160 characters in one message. Characters outside it, including many emoji and special symbols, switch the entire message to Unicode (UCS-2), lowering the limit to 70. Longer text is split into separately billed SMS segments, with 153 GSM-7 or 67 Unicode units because concatenation metadata uses part of each segment.

Savings tip: avoid emoji when they are not essential — a single emoji can double the cost by forcing Unicode. For verification messages, also try the OTP SMS validator.