Ireland is approximately 70,273 sq km, while Gibraltar is approximately 7 sq km, making Gibraltar 0.01% the size of Ireland. Meanwhile, the population of Ireland is ~5.2 million people (5.1 million fewer people live in Gibraltar).
This to-scale map shows a size comparison of Ireland compared to Gibraltar. For more details, see an in-depth quality of life comparison of Gibraltar vs. Ireland using our country comparison tool.