Convert 1 Old São Tomé Dobra (STD) to Guyanese Dollar (GYD)

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

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 STN to GYD.

Guyanese Dollar (GYD) is not the US Dollar (USD). Looking for STD to USD?

Amount

From

1 Old São Tomé Dobra =

0.009572 GYD +0.61% today

1 STD = 0.00957172 GYD · 1 GYD = 104.474 STD

Mid-market rate, updated 15:59 UTC. Paid plans update as often as every 60 seconds. Get STD→GYD rates via API

STD to GYD over the last year

52-week high: 0.0101220
52-week low: 0.0094831
52-week average: 0.0098292
Change over the year: −3.94%

Conversion tables

STD to GYD
STD	GYD
1 STD	0.009572 GYD
10 STD	0.09572 GYD
100 STD	0.9572 GYD
1,000 STD	9.57 GYD
10,000 STD	95.72 GYD
50,000 STD	478.59 GYD
100,000 STD	957.17 GYD

GYD to STD
GYD	STD
1 GYD	104.47 STD
10 GYD	1,044.74 STD
100 GYD	10,447.44 STD
1,000 GYD	104,474.42 STD
10,000 GYD	1,044,744.24 STD
50,000 GYD	5,223,721.21 STD
100,000 GYD	10,447,442.43 STD

Get STD→GYD rates via API

The live rate, the rate on any past day or a whole range, for GYD 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=STD -d currencies=GYD \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=STD -d currencies=GYD \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about STD to GYD

How much is 1 STD in GYD?

1 Old São Tomé Dobra is 0.009572 Guyanese dollars at the mid-market rate of 4 October 2026, 15:59 UTC, when 1 STD = 0.00957172 GYD.

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

Over the last 52 weeks 1 STD ranged from 0.00948315 to 0.010122 GYD, 0.00982916 GYD on average.

Which exchange rate is this?

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