21 STD to YER

21 STD = 0.23 YER at the rate on 2025-09-11.

1 STD = ﷼0.01 at the rate on 2025-09-11.

The cost of 21 Sao Tomean Dobras in Yemeni Rials today is ﷼0.23 according to the “Open Exchange Rates”, compared to yesterday, the exchange rate remained unchanged. The exchange rate of the Sao Tomean Dobra in relation to the Yemeni Rial on the chart, the table of the dynamics of the cost as a percentage for the day, week, month and year.

Currency Converter

Sao Tomean Dobra

STD

Sao Tome And Principe

Yemeni Rial

YER

Yemen

With the currency converter, you can convert 21 Sao Tomean Dobras to Rials and find out how much twenty-one dobras is currently worth in Rials. Also, you can make a reverse calculation and find out the current value of 21 Rials in Sao Tomean Dobras.

19 STD to YER	20 STD to YER	21 STD to YER	22 STD to YER	23 STD to YER
﷼0.20	﷼0.22	﷼0.23	﷼0.24	﷼0.25

19 STD to YER

20 STD to YER

21 STD to YER

22 STD to YER

23 STD to YER

﷼0.20

﷼0.22

﷼0.23

﷼0.24

﷼0.25

Graph of change in 21 Sao Tomean Dobras to Yemeni Rials rate

Select the period for plotting the chart:

The Sao Tomean Dobra to Rial 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 Dobras (STD) in Rials (YER)

Changes for the week (7 days)
Date	Day of the week	21 STD to YER	Changes	Changes %
September 5, 2025	Friday	21 STD = 0.23 YER	-0.000047 YER	-0.02%
September 6, 2025	Saturday	21 STD = 0.23 YER	-	-
September 7, 2025	Sunday	21 STD = 0.23 YER	-	-
September 8, 2025	Monday	21 STD = 0.23 YER	-0.0004 YER	-0.19%
September 9, 2025	Tuesday	21 STD = 0.23 YER	-0.000047 YER	-0.02%
September 10, 2025	Wednesday	21 STD = 0.23 YER	-	-
September 11, 2025 (today)	Thursday	21 STD = 0.23 YER	-	-
The cost of 21 Dobras (STD) in Yemeni Rials for a week (7 days) decreased by -﷼0.0005 (zero rial five fils).

Changes for the month (30 days)
Date	Day of the week	21 STD to YER	Changes	Changes %
August 12, 2025	Tuesday	21 STD = 0.23 YER	-	-
September 11, 2025 (today)	Thursday	21 STD = 0.23 YER	-0.0006 YER	-0.28%
The cost of 21 Dobras (STD) in Yemeni Rials for a month (30 days) decreased by -﷼0.0006 (zero rial six fils).

Changes for the year (365 days)
Date	Day of the week	21 STD to YER	Changes	Changes %
September 11, 2024	Wednesday	21 STD = 0.24 YER	-	-
September 11, 2025 (today)	Thursday	21 STD = 0.23 YER	-0.01 YER	-4.49%
The cost of 21 Dobras (STD) in Yemeni Rials for a year (365 days) decreased by -﷼0.01 (zero rial one fils).

Currency Converter

Graph of change in 21 Sao Tomean Dobras to Yemeni Rials rate

Dynamics of the cost changes of 21 Dobras (STD) in Rials (YER)

Cross rate of 21 STD to other currencies