You can get the price of bitcoin in pounds on the exchange that you are using. Also you can change it on sites like Coinmarketcap and Coingecko to any currency of your choice.
This is an example on the exchange that I used for it after setting the price to pounds sterling:

The bitcoin price there is £74,097.32
Use it to multiply the bitcoin which are 0.031 BTC & 0.0032 BTC.