Convert 100 Old São Tomé Dobra (STD) to Romanian Leu (RON)

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

Amount

From

100 old São Tomé dobras =

0.02175 RON +0.67% today

1 STD = 0.00021753 RON · 1 RON = 4,597.16 STD

Mid-market rate, updated 07:10 UTC. Paid plans update as often as every 60 seconds. Get STD→RON rates via API

STD to RON over the last year

52-week high: 0.00021753
52-week low: 0.00020429
52-week average: 0.00020887
Change over the year: +5.16%

Conversion tables

STD to RON
STD	RON
1 STD	0.0002175 RON
10 STD	0.002175 RON
100 STD	0.02175 RON
1,000 STD	0.2175 RON
10,000 STD	2.18 RON
50,000 STD	10.88 RON
100,000 STD	21.75 RON

RON to STD
RON	STD
1 RON	4,597.16 STD
10 RON	45,971.64 STD
100 RON	459,716.44 STD
1,000 RON	4,597,164.38 STD
10,000 RON	45,971,643.83 STD
50,000 RON	229,858,219.14 STD
100,000 RON	459,716,438.28 STD

Get STD→RON rates via API

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

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Questions about STD to RON

How much is 100 STD in RON?

100 old São Tomé dobras is 0.02175 Romanian lei at the mid-market rate of 4 October 2026, 07:10 UTC, when 1 STD = 0.00021753 RON.

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

Over the last 52 weeks 1 STD ranged from 0.00020429 to 0.00021753 RON, 0.00020887 RON on average.

Which exchange rate is this?

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