1. Currency converter
  2. STD to GYD
  3. 10 STD

Convert 10 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?

10 old São Tomé dobras =

0.09498 GYD −0.16% today

1 STD = 0.00949798 GYD · 1 GYD = 105.286 STD

Mid-market rate, updated 17:14 UTC. Paid plans update as often as every 60 seconds. Get STD→GYD rates via API

STD to GYD over the last year

0.00960.00980.01Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.0101220
52-week low
0.0094831
52-week average
0.0098290
Change over the year
−4.68%

Conversion tables

STD to GYD
STD GYD
1 STD 0.009498 GYD
10 STD 0.09498 GYD
100 STD 0.9498 GYD
1,000 STD 9.50 GYD
10,000 STD 94.98 GYD
50,000 STD 474.90 GYD
100,000 STD 949.80 GYD
GYD to STD
GYD STD
1 GYD 105.29 STD
10 GYD 1,052.86 STD
100 GYD 10,528.55 STD
1,000 GYD 105,285.55 STD
10,000 GYD 1,052,855.49 STD
50,000 GYD 5,264,277.43 STD
100,000 GYD 10,528,554.85 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"

Related conversions

Popular Old São Tomé Dobra conversions

Popular Guyanese Dollar conversions

Questions about STD to GYD

How much is 10 STD in GYD?

10 old São Tomé dobras is 0.09498 Guyanese dollars at the mid-market rate of 4 October 2026, 17:14 UTC, when 1 STD = 0.00949798 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, 0.00982896 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.