Not enough information. Do you mean a specific, collectible penny that would sell for more than face value to a coin collector, or do you mean the current exchange rate?
If you mean a collectible coin, please post a new question with more details including its date and condition.
If you mean the current exchange rate, it's almost exactly 1p = 2¢
All years of issue of the British decimal 1 Penny coin are still potentially in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 1 Penny.
1 Penny GBP in 1789 had the purchasing power of about £0.38 GBP today.
NOTE - This historical conversion is the result of many calculations and considerations by a purpose designed program for which I can take no credit. The resulting answer should only be regarded as an approximation.
What do you mean value? All British Coins intended for circulation minted from 1971 onwards have no value beyond face value (with the exception of a handful of error coins). So chances are the 5 pence coin is worth just that... 5 pence. The 1 pound coin is worth just that... 1 pound. Etc.
Anything dated 1971 or later is only worth face value in average condition.
If it's older than 1971 please post a new, separate question with its date.
one penny is the equivilent of 1p
100 pennys are equivalent to £1
1000 pennys are equivelent to £10
Pence is the plural of Penny. One Penny, Two Pence, Five Pence, etc.
The face value is on the coin.
Any valuation on any coin would depend on the year and condition of the coin.
excellent condition
There were no British 1979 20 Pence coins minted.
There was no 1974 British 25 Pence coin minted.
The first British 50 New Pence coin was issued in 1969.
The British 20 Pence coin was first released in 1982.
The first British 20 Pence coin was issued in 1982.
Such a coin does not exist. The British 50 Pence coin was first issued in 1969.
There was no 1978 British 25 Pence coin minted.
The "face value" of a coin is whatever is inscribed on it, hence the term "face value". The face value of a 10 Pence coin is 10 Pence.
There were no British 1975 25 Pence coins issued.
2 British Pence in 1979 had the equivalent value of about 1 cent USD.
The 10 New Pence coin was not introduced until 1968.
It is in common circulation and worth 2 British Pence, or about 3 cents US/Canadian. It is a common coin and worth no more than face value.