Convert 100 Old Belarusian Ruble (BYR) to Old São Tomé Dobra (STD)

Convert old Belarusian rubles to old São Tomé dobras at the live mid-market rate. Reverse: STD to BYR

The Old Belarusian Ruble is no longer in use

Old Belarusian Ruble (BYR) was replaced by the Belarusian Ruble (BYN) in 2016. For today’s money, convert BYN 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 BYR to STN.

Amount

From

100 old Belarusian rubles =

111.28 STD −0.67% today

1 BYR = 1.1128 STD · 1 STD = 0.898638 BYR

Mid-market rate, updated 05:59 UTC. Paid plans update as often as every 60 seconds. Get BYR→STD rates via API

BYR to STD over the last year

52-week high: 1.1239
52-week low: 0.6164
52-week average: 0.8449
Change over the year: +79.71%

Conversion tables

BYR to STD
BYR	STD
1 BYR	1.11 STD
10 BYR	11.13 STD
100 BYR	111.28 STD
1,000 BYR	1,112.80 STD
10,000 BYR	11,127.96 STD
50,000 BYR	55,639.78 STD
100,000 BYR	111,279.55 STD

STD to BYR
STD	BYR
1 STD	0.8986 BYR
10 STD	9 BYR
100 STD	90 BYR
1,000 STD	899 BYR
10,000 STD	8,986 BYR
50,000 STD	44,932 BYR
100,000 STD	89,864 BYR

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

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Questions about BYR to STD

How much is 100 BYR in STD?

100 old Belarusian rubles is 111.28 old São Tomé dobras at the mid-market rate of 4 October 2026, 05:59 UTC, when 1 BYR = 1.1128 STD.

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

Over the last 52 weeks 1 BYR ranged from 0.616359 to 1.12385 STD, 0.844939 STD on average.

Which exchange rate is this?

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