1 OP to ARB Exchange Rate Today — Convert Optimism to Arbitrum
. Type your Optimism amount and this OP to ARB currency converter shows the live exchange rate and Converted Amount in Arbitrums — the same mid-market rate banks quote, not a marked-up one. Hit swap for ARB to OP. See the Afghan Afghani (afn) to Icelandic Króna (isk) too.
Current OP to ARB Exchange Rate — Live Mid-Market Rate
As of 2026-09-11 11:14:01 UTC, 1 Optimism (OP) equals 0.671628904 Arbitrum (ARB). That's the OP to ARB mid-market rate — the midpoint between the global buy and sell price, before any bank markup or transfer spread. It's the fairest benchmark for a Optimism to Arbitrum money transfer, remittance or travel-money budget. See the exchange Kyrgystani Som to Seychellois Rupee too.
Quoted in ARB to 8 decimal places, it's the same interbank OP/ARB rate the forex market references — so you know exactly how much 1 OP is worth in Arbitrum today. In symbol terms that's OP to ARB, using the ISO 4217 codes OP and ARB.
Over the past 30 days the OP has softened against the Arbitrum.
Optimism to Arbitrum Exchange Rate Chart — 1-Year Weekly Trend
This Optimism to Arbitrum exchange rate chart plots the estimated weekly OP/ARB trend over the past year, so you can see how the currency pair has moved beyond today's live mid-market rate. See the kgs to eur rate today too.
Read it alongside the currency converter above to judge whether the OP is trading strong or weak against the Arbitrum before you exchange money, send a transfer or plan a forex trade — in other words, how many Arbitrums a single Optimism buys week to week. Longer swings in this pair usually track Optimism and Arbitrum central bank policy, inflation and forex demand.
Over the last 90 days the rate has trended downward (-2.36%).
OP to Arbitrum Conversion Table — Common Amounts
The OP to ARB conversion table below lists common amounts — from 1 to 9,998 — converted both ways at today's rate, so you can check 1 OP in ARB or a full transfer amount at a glance. Each row shows the Optimism to Arbitrums value and the reverse ARB to OP rate — handy for quick currency-calculator checks without retyping.
Planning to send money, wire a bank transfer or just sanity-check OP to ARB before you travel? The amounts below cover it.
| Amount (OP) | OP to ARB Exchange Rate | Amount (ARB) | ARB to OP Exchange Rate |
|---|---|---|---|
| 1 OP | 0.67163 ARB | 1 ARB | 1.48892 OP |
| 8 OP | 5.37303 ARB | 8 ARB | 11.91134 OP |
| 18 OP | 12.08932 ARB | 18 ARB | 26.80051 OP |
| 28 OP | 18.80561 ARB | 28 ARB | 41.68969 OP |
| 48 OP | 32.23819 ARB | 48 ARB | 71.46804 OP |
| 98 OP | 65.81963 ARB | 98 ARB | 145.91391 OP |
| 198 OP | 132.98252 ARB | 198 ARB | 294.80566 OP |
| 398 OP | 267.3083 ARB | 398 ARB | 592.58915 OP |
| 798 OP | 535.95987 ARB | 798 ARB | 1188.15613 OP |
| 1598 OP | 1073.26299 ARB | 1598 ARB | 2379.2901 OP |
| 3198 OP | 2147.86924 ARB | 3198 ARB | 4761.55803 OP |
| 6398 OP | 4297.08173 ARB | 6398 ARB | 9526.09389 OP |
| 7998 OP | 5371.68798 ARB | 7998 ARB | 11908.36182 OP |
| 8998 OP | 6043.31688 ARB | 8998 ARB | 13397.27928 OP |
| 9998 OP | 6714.94578 ARB | 9998 ARB | 14886.19674 OP |
Optimism to ARB Rate Statistics — 7, 30 & 90-Day High, Low & Volatility
These OP/ARB exchange rate statistics summarise the estimated high, low, average and volatility for the Optimism to Arbitrum pair over the last 7, 30 and 90 days — the kind of forex snapshot traders and remittance senders use to time a conversion and gauge how much the ARB rate typically swings around the interbank benchmark.
Because banks and money-transfer providers add a markup on top of this bank rate, watching the OP/ARB range — nudged by central bank decisions — helps you spot a good day to exchange.
Over the last 7 days, OP to ARB moved between 0.6694 and 0.6778. The average was 0.6731 with 1.24% volatility. Over the last 30 days, OP to ARB moved between 0.6694 and 0.7115. The average was 0.6879 with 6.12% volatility. Over the last 90 days, OP to ARB moved between 0.6694 and 0.7456. The average was 0.7082 with 10.75% volatility.
| Metric | Last 7 Days | Last 30 Days | Last 90 Days |
|---|---|---|---|
| High | 0.6778 | 0.7115 | 0.7456 |
| Low | 0.6694 | 0.6694 | 0.6694 |
| Average | 0.6731 | 0.6879 | 0.7082 |
| Change | -0.91% | -5.61% | -2.36% |
| Volatility | 1.24% | 6.12% | 10.75% |
Using the Optimism (OP) to Arbitrum (ARB) Currency Converter
To use this Optimism to Arbitrum currency converter, enter the Optimism amount and pick Arbitrum as the target. The currency calculator (or conversion calculator) applies the real-time OP/ARB exchange rate and shows the equivalent in Arbitrums instantly — answering how much is Optimism in Arbitrum the moment you type.
Tap swap to flip it into a ARB to OP converter. It's built for planning international money transfers and SWIFT wire payments, working out how much to send money abroad or overseas, budgeting travel money, comparing remittance quotes or checking a foreign exchange (forex) trade.
Key Features of the OP/ARB Currency Converter
Here's what makes this OP to ARB currency converter reliable for everyday exchange-rate checks, money transfers and forex planning:
- Real-Time Data: The converter pulls the latest Optimism to ARB mid-market exchange rate, so the numbers you see reflect today's live market.
- User-Friendly Interface: Enter an amount and convert between this currency pair in seconds.
- Reliable Source: Rates are sourced from established financial data providers, the same ones banks and traders reference.
- Both Directions: Convert Optimism to Arbitrums and flip straight back to ARB → OP — one tool for the whole OP/ARB pair.
- Travel & Transfer Ready: Handy for ordering Arbitrum banknotes, sending a wire transfer, or comparing the ISO 4217 pair OP and ARB before a forex trade.