ExchangeRates.org.uk's 2021 average conversion for pound sterling to US dollar.
"British Pound to US Dollar Spot Exchange Rates for 2021," ExchangeRates.org.uk, 2023, accessed September 27, 2023
Best exchange rate: 1.4217 USD on 31 May 2021.
Average exchange rate in 2021: 1.3757 USD.
Worst exchange rate: 1.3208 USD on 08 Dec 2021.