Currency converter
OP to STD

50 OP to STD

Convert Optimism to São Tomé and Príncipe dobras at the live mid-market rate.

Amount

From

50 Optimism =

140,431.18 STD −3.79% today

1 OP = 2,808.62 STD · 1 STD = 0.00035605 OP

Mid-market rate, updated 23:57 UTC. Paid plans update as often as every 60 seconds. Get this rate via API

OP to STD over the last year

52-week high: 15,983.93
52-week low: 1,758.25
52-week average: 4,396.50
Change over the year: −80.26%

Conversion tables

OP to STD
OP	STD
1 OP	2,808.62 STD
5 OP	14,043.12 STD
10 OP	28,086.24 STD
25 OP	70,215.59 STD
50 OP	140,431.18 STD
100 OP	280,862.37 STD
250 OP	702,155.92 STD
500 OP	1,404,311.83 STD
1,000 OP	2,808,623.67 STD
5,000 OP	14,043,118.33 STD
10,000 OP	28,086,236.65 STD
50,000 OP	140,431,183.27 STD

STD to OP
STD	OP
1 STD	0.000356 OP
5 STD	0.00178 OP
10 STD	0.00356 OP
25 STD	0.008901 OP
50 STD	0.0178 OP
100 STD	0.0356 OP
250 STD	0.08901 OP
500 STD	0.178 OP
1,000 STD	0.356 OP
5,000 STD	1.78023150 OP
10,000 STD	3.56046300 OP
50,000 STD	17.80231500 OP

OP to STD via API

The live rate, the rate on any past day or a whole range, for STD and 170+ other currencies, as JSON. Free plan included.

Get a free API key API documentation

curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=OP -d currencies=STD \
  -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=STD \
  -d date=2025-09-29 \
  -H "apikey: YOUR-API-KEY"

Popular Optimism conversions

Questions about OP to STD

How much is 50 OP in STD?

50 Optimism is 140,431.18 São Tomé and Príncipe dobras at the mid-market rate of 29 September 2026, 23:57 UTC, when 1 OP = 2,808.62 STD.

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

Over the last 52 weeks 1 OP ranged from 1,758.25 to 15,983.93 STD, 4,396.50 STD on average.

Which exchange rate is this?

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