Back Vlag van Indonesië Afrikaans የኢንዶኔዥያ ሰንደቅ ዓላማ Amharic علم إندونيسيا Arabic علم اندونيسيا ARZ İndoneziya bayrağı Azerbaijani Kobér Indonésia BAN Flaggn vo Indonesien BAR Induonezėjės vieleva BAT-SMG Mandera Indonesia BBC Bandera kan Indonesya BCL
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| Name | Sang Saka Merah-Putih Bendera Merah-Putih Merah-Putih |
|---|---|
| Use | National flag and ensign   |
| Proportion | 2:3 |
| Adopted | 13th century (Majapahit Empire) 28 October 1928 (standardized) 17 August 1945 (original) 17 August 1950 (official) |
| Design | A horizontal bicolour of red and white |
| Designed by | Fatmawati |
 Variant flag of Indonesia | |
| Name | Ular-Ular Perang or Lencana Perang |
| Use | Naval jack  |
| Proportion | 2:3 |
| Design | Nine horizontal stripes of alternating red and white |
The Flag of Indonesia is a bicolour flag with two equal horizontal bands of red (top) and white (bottom) with an overall ratio of 2:3.
The flag of Indonesia is graphically identical to the Flag of Monaco, with a slight difference only in the ratio of its dimensions.