Barbados is approximately 430 sq km, while Pitcairn Islands is approximately 47 sq km, making Pitcairn Islands 10.93% the size of Barbados.
This to-scale map shows a size comparison of Barbados compared to Pitcairn Islands. For more details, see an in-depth quality of life comparison of Pitcairn Islands vs. Barbados using our country comparison tool.