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Old São Tomé Dobra (STD) to Cambodian Riel (KHR)

Convert old São Tomé dobras to Cambodian riels at the live mid-market rate. Reverse: KHR 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 KHR.

1 Old São Tomé Dobra =

0.186 KHR +0.67% today

1 STD = 0.186009 KHR · 1 KHR = 5.37609 STD

Mid-market rate, updated 03:39 UTC. Paid plans update as often as every 60 seconds. Get STD→KHR rates via API

STD to KHR over the last year

0.1850.190.195Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.19476
52-week low
0.18418
52-week average
0.18918
Change over the year
−2.73%

Conversion tables

STD to KHR
STD KHR
1 STD 0.186 KHR
10 STD 1.86 KHR
100 STD 18.60 KHR
1,000 STD 186.01 KHR
10,000 STD 1,860.09 KHR
50,000 STD 9,300.44 KHR
100,000 STD 18,600.89 KHR
KHR to STD
KHR STD
1 KHR 5.38 STD
10 KHR 53.76 STD
100 KHR 537.61 STD
1,000 KHR 5,376.09 STD
10,000 KHR 53,760.87 STD
50,000 KHR 268,804.37 STD
100,000 KHR 537,608.75 STD

Get STD→KHR rates via API

The live rate, the rate on any past day or a whole range, for KHR 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=KHR \
  -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=KHR \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about STD to KHR

How much is 1 STD in KHR?

1 Old São Tomé Dobra is 0.186009 Cambodian riels at the mid-market rate of 4 October 2026, 03:39 UTC, and 1 KHR is 5.37609 STD.

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

Over the last 52 weeks 1 STD ranged from 0.184179 to 0.194757 KHR, 0.189177 KHR on average.

Which exchange rate is this?

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