Convert HKD to different currencies then convert to GBP

Hi HMRC After I moved to UK, I transfer my HKD from HK bank account to UK IB account, then I converted to different currencies, for example: USD, AUD, JPY, when I need GBP for pay the rent or buy my own property afterward, I convert those foreign currencies to GBP, the exchange rate maybe higher than before. Do I need to pay “Capital Gain Tax” for such currency conversion? Thank you Kind regards YFC

Hi,

No, as this income is for personal use.

Thank you.