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Romanian Leu (RON) to Old São Tomé Dobra (STD)

Convert Romanian lei to old São Tomé dobras at the live mid-market rate. Reverse: STD to RON

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 RON to STN.

1 Romanian Leu =

4,599.88 STD −0.61% today

1 RON = 4,599.88 STD · 1 STD = 0.0002174 RON

Mid-market rate, updated 14:00 UTC. Paid plans update as often as every 60 seconds. Get RON→STD rates via API

RON to STD over the last year

4,600.004,700.004,800.004,900.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
4,894.92
52-week low
4,599.88
52-week average
4,788.87
Change over the year
−4.85%

Conversion tables

RON to STD
RON STD
1 RON 4,599.88 STD
10 RON 45,998.78 STD
100 RON 459,987.82 STD
1,000 RON 4,599,878.23 STD
10,000 RON 45,998,782.33 STD
50,000 RON 229,993,911.64 STD
100,000 RON 459,987,823.27 STD
STD to RON
STD RON
1 STD 0.0002174 RON
10 STD 0.002174 RON
100 STD 0.02174 RON
1,000 STD 0.2174 RON
10,000 STD 2.17 RON
50,000 STD 10.87 RON
100,000 STD 21.74 RON

Get RON→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=RON -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=RON -d currencies=STD \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about RON to STD

How much is 1 RON in STD?

1 Romanian Leu is 4,599.88 old São Tomé dobras at the mid-market rate of 4 October 2026, 14:00 UTC, and 1 STD is 0.0002174 RON.

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

Over the last 52 weeks 1 RON ranged from 4,599.88 to 4,894.92 STD, 4,788.87 STD on average.

Which exchange rate is this?

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