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  2. OP to KHR

Optimism (OP) to Cambodian Riel (KHR)

Convert Optimism to Cambodian riels at the live mid-market rate. Reverse: KHR to OP

1 Optimism =

545.45 KHR −1.57% today

1 OP = 545.447 KHR · 1 KHR = 0.00183336 OP

Mid-market rate, updated 03:54 UTC. Paid plans update as often as every 60 seconds. Get OP→KHR rates via API

OP to KHR over the last year

1,000.002,000.003,000.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
3,036.79
52-week low
332.28
52-week average
801.22
Change over the year
−81.20%

Conversion tables

OP to KHR
OP KHR
1 OP 545.45 KHR
10 OP 5,454.47 KHR
100 OP 54,544.66 KHR
1,000 OP 545,446.58 KHR
10,000 OP 5,454,465.81 KHR
50,000 OP 27,272,329.07 KHR
100,000 OP 54,544,658.15 KHR
KHR to OP
KHR OP
1 KHR 0.001833 OP
10 KHR 0.01833 OP
100 KHR 0.1833 OP
1,000 KHR 1.83336010 OP
10,000 KHR 18.33360100 OP
50,000 KHR 91.66800500 OP
100,000 KHR 183.33601000 OP

Get OP→KHR rates via API

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

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Questions about OP to KHR

How much is 1 OP in KHR?

1 Optimism is 545.447 Cambodian riels at the mid-market rate of 4 October 2026, 03:54 UTC, and 1 KHR is 0.00183336 OP.

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

Over the last 52 weeks 1 OP ranged from 332.282 to 3,036.79 KHR, 801.224 KHR on average.

Which exchange rate is this?

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