1. Currency converter
  2. USD to STD

US Dollar (USD) to Old São Tomé Dobra (STD)

Convert US dollars to old São Tomé dobras at the live mid-market rate. Reverse: STD to USD

The Old São Tomé Dobra is no longer in use

Old São Tomé Dobra (STD) was replaced by the São Tomé and Príncipe Dobra (STN) in 2018. For today’s money, convert USD to STN.

1 US Dollar =

21,864.23 STD +0.53% today

1 USD = 21,864.23 STD · 1 STD = 0.00004574 USD

Mid-market rate, updated 23:03 UTC. Paid plans update as often as every 60 seconds. Get USD→STD rates via API

USD to STD over the last year

21,000.0021,500.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
21,864.23
52-week low
20,646.21
52-week average
21,255.71
Change over the year
+4.07%

Conversion tables

USD to STD
USD STD
1 USD 21,864.23 STD
10 USD 218,642.32 STD
100 USD 2,186,423.15 STD
1,000 USD 21,864,231.52 STD
10,000 USD 218,642,315.23 STD
50,000 USD 1,093,211,576.14 STD
100,000 USD 2,186,423,152.29 STD
STD to USD
STD USD
1 STD 0.00004574 USD
10 STD 0.0004574 USD
100 STD 0.004574 USD
1,000 STD 0.04574 USD
10,000 STD 0.4574 USD
50,000 STD 2.29 USD
100,000 STD 4.57 USD

Get USD→STD rates via API

The live rate, the rate on any past day or a whole range, for STD and 170+ other currencies, as JSON. Free plan included. See the exchange rate API.

Get a free API key API documentation 
curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=USD -d currencies=STD \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=USD -d currencies=STD \
  -d date=2025-10-01 \
  -H "apikey: YOUR-API-KEY"

Related conversions

Popular US Dollar conversions

Popular Old São Tomé Dobra conversions

Questions about USD to STD

How much is 1 USD in STD?

1 US Dollar is 21,864.23 old São Tomé dobras at the mid-market rate of 1 October 2026, 23:03 UTC, and 1 STD is 0.00004574 USD.

What was the USD to STD rate over the last year?

Over the last 52 weeks 1 USD ranged from 20,646.21 to 21,864.23 STD, 21,255.71 STD on average.

Which exchange rate is this?

The mid-market rate: the midpoint between what currency markets pay and ask for USD/STD, without the margin a bank or card issuer adds, so the rate you are charged is usually a little worse.