21 IDR to SGD

21 IDR = 0.0016 SGD at the rate on 2025-09-11.

Rp1 = $0.0001 ^{-$0.00000003 (-0.03%)} at the rate on 2025-09-11.

The cost of 21 Indonesian Rupiah in Singapore Dollars today is $0.0016 according to the “Open Exchange Rates”, compared to yesterday, the exchange rate decreased by -0.03% (by -$0.00000003). The exchange rate of the Indonesian Rupiah in relation to the Singapore Dollar on the chart, the table of the dynamics of the cost as a percentage for the day, week, month and year.

Currency Converter

Indonesian Rupiah

IDR

Indonesia

Singapore Dollar

SGD

Singapore

With the currency converter, you can convert 21 Indonesian Rupiah to Dollars and find out how much twenty-one rupiah is currently worth in Dollars. Also, you can make a reverse calculation and find out the current value of 21 Dollars in Indonesian Rupiah.

19 IDR to SGD	20 IDR to SGD	21 IDR to SGD	22 IDR to SGD	23 IDR to SGD
$0.0015	$0.0016	$0.0016	$0.0017	$0.0018

19 IDR to SGD

20 IDR to SGD

21 IDR to SGD

22 IDR to SGD

23 IDR to SGD

$0.0015

$0.0016

$0.0016

$0.0017

$0.0018

Graph of change in 21 Indonesian Rupiah to Singapore Dollars rate

Select the period for plotting the chart:

The Indonesian Rupiah to Dollar exchange rate on the chart allows you to track changes over different periods and draw conclusions about possible forecasts of the exchange rate of one currency in relation to another.

Dynamics of the cost changes of 21 Rupiah (IDR) in Dollars (SGD)

Changes for the week (7 days)
Date	Day of the week	21 IDR to SGD	Changes	Changes %
September 5, 2025	Friday	21 IDR = 0.0016 SGD	+0.000003 SGD	+0.19%
September 6, 2025	Saturday	21 IDR = 0.0016 SGD	-0.000001 SGD	-0.04%
September 7, 2025	Sunday	21 IDR = 0.0016 SGD	-0.000001 SGD	-0.04%
September 8, 2025	Monday	21 IDR = 0.0016 SGD	-0.000012 SGD	-0.74%
September 9, 2025	Tuesday	21 IDR = 0.0016 SGD	+0.000002 SGD	+0.13%
September 10, 2025	Wednesday	21 IDR = 0.0016 SGD	-0.00000003 SGD	-0.0016%
September 11, 2025 (today)	Thursday	21 IDR = 0.0016 SGD	-0.000001 SGD	-0.03%
The cost of 21 Rupiah (IDR) in Singapore Dollars for a week (7 days) decreased by -$0.000012 (zero dollar twelve cents).

Changes for the month (30 days)
Date	Day of the week	21 IDR to SGD	Changes	Changes %
August 12, 2025	Tuesday	21 IDR = 0.0017 SGD	+0.00000030 SGD	+0.02%
September 11, 2025 (today)	Thursday	21 IDR = 0.0016 SGD	-0.000021 SGD	-1.29%
The cost of 21 Rupiah (IDR) in Singapore Dollars for a month (30 days) decreased by -$0.000021 (zero dollar twenty-one cents).

Changes for the year (365 days)
Date	Day of the week	21 IDR to SGD	Changes	Changes %
September 11, 2024	Wednesday	21 IDR = 0.0018 SGD	+0.000005 SGD	+0.29%
September 11, 2025 (today)	Thursday	21 IDR = 0.0016 SGD	-0.0001 SGD	-8.35%
The cost of 21 Rupiah (IDR) in Singapore Dollars for a year (365 days) decreased by -$0.0001 (zero dollar one cent).

Currency Converter

Graph of change in 21 Indonesian Rupiah to Singapore Dollars rate

Dynamics of the cost changes of 21 Rupiah (IDR) in Dollars (SGD)

Cross rate of 21 IDR to other currencies