World's Lowest Value Current Circulating Coin? (May Upset Jbuck!)

Russian 1 kopek coins were last issued for circulation in 2009 (at the time they were worth 0.035 US cents), not counting a special issue in 2014 to facilitate adoption of Russian currency in recently occupied Crimea (by then the exchange rate had gone down to 0.02 cents).

I do also wonder what the lowest value circulating coin still recently minted is... it could well be the Polish 1 grosz. Offhand I can't think of anything lower valued that was still in production in 2021.
As far as issues intended for circulation are concerned, AFAIK the Philippine 1 sentimo (ca. 0.019 US cents) could circulate but mostly doesn't; in any case it hadn't been minted since 2019.


EDIT: for what it's worth, growing up with the Russian 1 and 5 kopeks as something that very much does occasionally show up in change, I never understood other countries' fascination with removing low denominations of their currency.
As far as I was concerned a US cent was far too high for a lowest denomination; why no Half Cent, no mill, no half mill?
When I found out that UK used to have quarter farthings, I immediately understood that it was a very neat idea, and was mildly surprised why it didn't go any lower.

The places where I'd expect you'd be likeliest to find "low value coins" in regular circulation are the "third world economies", particularly in Africa and the Pacific islands. Such countries rouinely have people earning very low wages, with prices for basic foodstuffs correspondingly also very low. However, you also want to avoid looking in the "basket case" countries, where the economy is so unstable coins either do not exist or do not form part of the functioning economy.

Some examples of third-world-but-stable currencies, and their smallest coins:
Botswana - 5 thebe: 0.41 US cents
Egypt - 25 piastres: 1.35 US cents
Ghana - 5 pesewas: 0.68 US cents
Kenya - 1 shilling: 0.86 US cents
Nigeria - 1 naira: 0.24 US cents (no coins in typical everyday use there)
South Africa - 10 cents: 0.62 US cents

Fiji - 5 cents: 2.29 US cents
French Pacific (New Caledonia, Tahiti, etc) - 1 franc: 0.88 US cents
Papua New Guinea - 5 toea: 1.42 US cents
Samoa - 10 sene: 3.88 US cents
Solomon Islands - 10 cents: 1.23 US cents

So it surprises me: the countries that "need" low-value coins the most, don't tend to have coins below half a US cent.

Relatively recently, I was in Georgia and purchased 1 and 2 tetri coins there. When I bought them, I thought they were analogues of Russian 1 and 5 kopecks. What was my surprise when I first saw how one customer was given them for change in the store.

0.01 Georgian Lari = 0.0032 US Dollars


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Cool coins, during my vacation there I bought coins in 100, 200 and 1000 rupees. I was thinking about selling them later, but no one wants to buy them. Now I do not know what to do with them. I have left new rolls of coins, but I do not know what to do with the already opened ones. They have been lying for several years.

I know this one is not current, but by the time Hungarian pengo were demonitised, one US dollar would buy this many pengo.
460,000,000,000,000,000,000,000,000,000

1 Kurus from Turkey (1/100 of a Turkish Lira)is equivalent of 0.15 US cents at the moment. Although it's rare in circulation, I get one or two every year from supermarkets and it's still minted.

I neither vote nor pay taxes in these other countries, so I have no right to criticize their coinage.

When I visited Bulgaria for a few weeks in 2014, it was rare to see a 1 or 2 stotinki coin, but one time I went to a McDonald's near Varna and got like half a dozen of them in change at once.

This historical aspect is fascinating!