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  2. BYR to CUC

Old Belarusian Ruble (BYR) to Cuban Convertible Peso (CUC)

Convert old Belarusian rubles to Cuban Convertible Peso at the live mid-market rate. Reverse: CUC 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 CUC.

The Cuban Convertible Peso is no longer in use

Cuban Convertible Peso (CUC) was replaced by the Cuban Peso (CUP) in 2021. For today’s money, convert BYR to CUP.

1 Old Belarusian Ruble =

0.00005102 CUC 0.00% today

1 BYR = 0.00005102 CUC · 1 CUC = 19,600.00 BYR

Mid-market rate, updated 05:19 UTC. Paid plans update as often as every 60 seconds. Get BYR→CUC rates via API

BYR to CUC over the last year

0.000030.000040.00005Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00005102
52-week low
0.00002928
52-week average
0.00003969
Change over the year
+72.65%

Conversion tables

BYR to CUC
BYR CUC
1 BYR 0.00005102 CUC
10 BYR 0.0005102 CUC
100 BYR 0.005102 CUC
1,000 BYR 0.05102 CUC
10,000 BYR 0.5102 CUC
50,000 BYR 2.55 CUC
100,000 BYR 5.10 CUC
CUC to BYR
CUC BYR
1 CUC 19,600 BYR
10 CUC 196,000 BYR
100 CUC 1,960,000 BYR
1,000 CUC 19,600,000 BYR
10,000 CUC 196,000,000 BYR
50,000 CUC 980,000,000 BYR
100,000 CUC 1,960,000,000 BYR

Get BYR→CUC rates via API

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

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Questions about BYR to CUC

How much is 1 BYR in CUC?

1 Old Belarusian Ruble is 0.00005102 Cuban Convertible Peso at the mid-market rate of 4 October 2026, 05:19 UTC, and 1 CUC is 19,600.00 BYR.

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

Over the last 52 weeks 1 BYR ranged from 0.00002928 to 0.00005102 CUC, 0.00003969 CUC on average.

Which exchange rate is this?

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