1 STD to IRR

1 STD = 1.89 IRR at the rate on 2025-09-05.

The cost of 1 Sao Tomean Dobra in Iranian Rials today is ﷼1.89 according to the “Open Exchange Rates”, compared to yesterday, the exchange rate decreased by -0.04% (by -﷼0.0007). The exchange rate of the Sao Tomean Dobra in relation to the Iranian Rial on the chart, the table of the dynamics of the cost as a percentage for the day, week, month and year.

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Sao Tomean Dobra

STD

Sao Tome And Principe

Iranian Rial

IRR

Iran

With the currency converter, you can convert 1 Sao Tomean Dobra to Rials and find out how much one dobra is currently worth in Rials. Also, you can make a reverse calculation and find out the current value of 1 Rial in Sao Tomean Dobras.

1 STD to IRR	2 STD to IRR	3 STD to IRR
﷼1.89	﷼3.78	﷼5.66

1 STD to IRR

2 STD to IRR

3 STD to IRR

﷼1.89

﷼3.78

﷼5.66

Graph of change in 1 Sao Tomean Dobra to Iranian 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 1 Dobra (STD) in Rials (IRR)

Changes for the week (7 days)
Date	Day of the week	1 STD to IRR	Changes	Changes %
August 30, 2025	Saturday	1 STD = 1.89 IRR	-	-
August 31, 2025	Sunday	1 STD = 1.89 IRR	+0.0006 IRR	+0.03%
September 1, 2025	Monday	1 STD = 1.89 IRR	-	-
September 2, 2025	Tuesday	1 STD = 1.89 IRR	-0.0011 IRR	-0.06%
September 3, 2025	Wednesday	1 STD = 1.89 IRR	-	-
September 4, 2025	Thursday	1 STD = 1.89 IRR	+0.0011 IRR	+0.06%
September 5, 2025 (today)	Friday	1 STD = 1.89 IRR	-0.0007 IRR	-0.04%
The cost of 1 Dobra (STD) in Iranian Rials for a week (7 days) decreased by -﷼0.0001 (zero rial one dinar).

Changes for the month (30 days)
Date	Day of the week	1 STD to IRR	Changes	Changes %
August 6, 2025	Wednesday	1 STD = 1.89 IRR	-	-
September 5, 2025 (today)	Friday	1 STD = 1.89 IRR	-0.0029 IRR	-0.15%
The cost of 1 Dobra (STD) in Iranian Rials for a month (30 days) decreased by -﷼0.0029 (zero rial twenty-nine dinars).

Changes for the year (365 days)
Date	Day of the week	1 STD to IRR	Changes	Changes %
September 5, 2024	Thursday	1 STD = 1.89 IRR	+0.0006 IRR	+0.03%
September 5, 2025 (today)	Friday	1 STD = 1.89 IRR	-0.0020 IRR	-0.11%
The cost of 1 Dobra (STD) in Iranian Rials for a year (365 days) decreased by -﷼0.0020 (zero rial twenty dinars).

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Graph of change in 1 Sao Tomean Dobra to Iranian Rials rate

Dynamics of the cost changes of 1 Dobra (STD) in Rials (IRR)

Cross rate of 1 STD to other currencies