UK readers usually lose money in two places: the visible transfer fee and the hidden exchange-rate margin. A bank can advertise a low fee while using a weaker GBP/THB rate, so the useful comparison is total baht received.
What to compare
Check the mid-market GBP/THB rate, the provider rate, the fee, the funding method, and the estimated delivery time. Debit card funding can be quick but expensive. Bank transfer funding is often cheaper but slower. Large transfers may need a broker or extra compliance checks.
Where to start
Use the main provider leaderboard for the latest benchmark and the GBP to THB converter to sanity-check a quoted rate. For property or pension-sized payments, read the dedicated large-transfer guides before moving funds.
Method note
The Baht uses mid-market rates as the neutral baseline and separates provider rankings from affiliate relationships. See the methodology for how comparisons are built.