Israel is about 6 times bigger than South Georgia and South Sandwich Islands.

South Georgia and South Sandwich Islands is approximately 3,903 sq km, while Israel is approximately 21,937 sq km, making Israel 462% larger than South Georgia and South Sandwich Islands.
Tip: This to-scale comparison of South Georgia and South Sandwich Islands vs. Israel uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Israel vs. South Georgia and South Sandwich Islands