Carbon dating, also called radiocarbon dating, is a scientific method for determining the age of organic materials by measuring the properties of isotope carbon-14 (14C). While radiocarbon dating is extremely useful for dating organic artifacts and materials younger than 50,000 years old, it is not used to estimate the age of the earth itself.
The age of the earth is generally accepted by scientists to be approximately 4.54 billion years old, as measured using other dating techniques like uranium-lead dating, potassium-argon dating, and rubidium-strontium dating. These methods rely on the measurement of radioactive decay rates of different elements found in rocks and minerals.