How long is 1 SMS Message?

We differentiate between the length of a single message and the length of a single SMS. A standard SMS can contain up to 160 characters, depending on the alphabet used in your SMS. But you can send one complete message with a total of up to 1377 characters via our platform, though this will actually take 9 SMS messages to send. What happens here is called concatenation.

When you are sending a message that exceeds the maximum character amount of a standard SMS, our system will break these up into chunks of 153 characters to transmit, before putting them back together to create one long message on the recipient's phone. This is called concatenation.

For a concatenated SMS the costs of each extra SMS will be charged. The table below illustrates the amount of SMS needed to send a message when the corresponding amount of characters is used.

Number of SMS

Maximum GSM characters

Maximum Unicode characters

1

160

70

2

306

134

3

459

201

4

612

268

5

765

335

6

918

402

7

1071

469

8

1224

536

9

1377

603

 

Not all countries support concatenated SMS and might handle multi-part SMS in different ways. Check if the country you want to send messages to does or doesn't support concatenated SMS.

If you’re sending a message from the Dashboard, there is a counter that indicates the amount of SMS and characters you’ve used in the bottom right-hand corner of the text box where you enter your message.

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