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Old Belarusian Ruble (BYR) to Arbitrum (ARB)

Convert old Belarusian rubles to Arbitrums at the live mid-market rate. Reverse: ARB 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 ARB.

1 Old Belarusian Ruble =

0.0002534 ARB +0.24% today

1 BYR = 0.00025337 ARB · 1 ARB = 3,946.80 BYR

Mid-market rate, updated 08:47 UTC. Paid plans update as often as every 60 seconds. Get BYR→ARB rates via API

BYR to ARB over the last year

0.00020.00040.0006Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00069675
52-week low
0.00006451
52-week average
0.00033320
Change over the year
+272.26%

Conversion tables

BYR to ARB
BYR ARB
1 BYR 0.0002534 ARB
10 BYR 0.002534 ARB
100 BYR 0.02534 ARB
1,000 BYR 0.2534 ARB
10,000 BYR 2.53369500 ARB
50,000 BYR 12.66847500 ARB
100,000 BYR 25.33695000 ARB
ARB to BYR
ARB BYR
1 ARB 3,947 BYR
10 ARB 39,468 BYR
100 ARB 394,680 BYR
1,000 ARB 3,946,805 BYR
10,000 ARB 39,468,050 BYR
50,000 ARB 197,340,249 BYR
100,000 ARB 394,680,497 BYR

Get BYR→ARB rates via API

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

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Questions about BYR to ARB

How much is 1 BYR in ARB?

1 Old Belarusian Ruble is 0.00025337 Arbitrums at the mid-market rate of 4 October 2026, 08:47 UTC, and 1 ARB is 3,946.80 BYR.

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

Over the last 52 weeks 1 BYR ranged from 0.00006451 to 0.00069675 ARB, 0.0003332 ARB on average.

Which exchange rate is this?

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