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Optimism (OP) to Romanian Leu (RON)

Convert Optimism to Romanian lei at the live mid-market rate. Reverse: RON to OP

1 Optimism =

0.6399 RON −1.26% today

1 OP = 0.639858 RON · 1 RON = 1.56285 OP

Mid-market rate, updated 04:50 UTC. Paid plans update as often as every 60 seconds. Get OP→RON rates via API

OP to RON over the last year

1.002.003.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
3.29364
52-week low
0.37229
52-week average
0.87866
Change over the year
−79.61%

Conversion tables

OP to RON
OP RON
1 OP 0.6399 RON
10 OP 6.40 RON
100 OP 63.99 RON
1,000 OP 639.86 RON
10,000 OP 6,398.58 RON
50,000 OP 31,992.90 RON
100,000 OP 63,985.79 RON
RON to OP
RON OP
1 RON 1.56284689 OP
10 RON 15.62846890 OP
100 RON 156.28468904 OP
1,000 RON 1,562.84689040 OP
10,000 RON 15,628.46890400 OP
50,000 RON 78,142.34452000 OP
100,000 RON 156,284.68904000 OP

Get OP→RON rates via API

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

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

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Questions about OP to RON

How much is 1 OP in RON?

1 Optimism is 0.639858 Romanian lei at the mid-market rate of 4 October 2026, 04:50 UTC, and 1 RON is 1.56285 OP.

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

Over the last 52 weeks 1 OP ranged from 0.372288 to 3.29364 RON, 0.878658 RON on average.

Which exchange rate is this?

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