Convert 100,000 Arbitrum (ARB) to Optimism (OP)

Convert Arbitrums to Optimism at the live mid-market rate. Reverse: OP to ARB

Amount

From

100,000 Arbitrums =

149,372.98810000 OP +1.07% today

1 ARB = 1.49373 OP · 1 OP = 0.669465 ARB

Mid-market rate, updated 05:46 UTC. Paid plans update as often as every 60 seconds. Get ARB→OP rates via API

ARB to OP over the last year

52-week high: 1.8372
52-week low: 0.5690
52-week average: 0.8577
Change over the year: +149.09%

Conversion tables

ARB to OP
ARB	OP
1 ARB	1.49372988 OP
10 ARB	14.93729881 OP
100 ARB	149.37298810 OP
1,000 ARB	1,493.72988100 OP
10,000 ARB	14,937.29881000 OP
50,000 ARB	74,686.49405000 OP
100,000 ARB	149,372.98810000 OP

OP to ARB
OP	ARB
1 OP	0.6695 ARB
10 OP	6.69465084 ARB
100 OP	66.94650838 ARB
1,000 OP	669.46508380 ARB
10,000 OP	6,694.65083800 ARB
50,000 OP	33,473.25419000 ARB
100,000 OP	66,946.50838000 ARB

Get ARB→OP rates via API

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

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=ARB -d currencies=OP \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about ARB to OP

How much is 100,000 ARB in OP?

100,000 Arbitrums is 149,372.98810000 Optimism at the mid-market rate of 4 October 2026, 05:46 UTC, when 1 ARB = 1.49373 OP.

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

Over the last 52 weeks 1 ARB ranged from 0.569033 to 1.83715 OP, 0.857699 OP on average.

Which exchange rate is this?

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