How much will the sea level rise if ice in Arctic and Antarctica melts?

If all the ice in Antarctica and the Arctic melted, sea levels would rise about 68 to 75 meters. However, this is a very unlikely scenario. Scientists believe that even if all the ice at the poles were to melt, it would take many centuries or even millennia. However, even a rise of a few meters would have significant consequences, such as widespread flooding of coastal regions.