A postcard from Singapore to Australia is S$3.00 with SingPost’s international postcard/greeting-card rate, which covers the Asia Pacific zone for postcards in the current rate guidance.

What to use

  • Postcard / greeting card rate: S$3.00.
  • If the card is oversized or non-standard: it may be charged as a letter instead of a postcard, which can cost more.

Quick check

For a normal postcard, one S$3.00 stamp is the right amount in 2026.

Note

Postal prices can change, so if you’re mailing it soon, it’s worth confirming the latest SingPost rate before you buy the stamp.