Age of Earth
The age of Earth is the time that has passed since the planet formed from the solar nebula.
How big is it?
4.54 Gyr · time
Time · reference interval
A little perspective
Age of Earth vs Earth: duration comparison
The age of Earth is approximately equal to the age of Earth.
ELAPSED TIME
The age of Earth is the time that has passed since the planet formed from the solar nebula.
Measurements, assumptions & sources +
Age of Earth
Time: 4.54 Gyr; reference interval.
A rounded 4.54 billion-year geological age.
Defined examples — our methodology
The marked time is calibrated. Unmeasured illustration details are representative.
Earth
Age: 4.54 Gyr; rounded geological anchor.
Mean-radius spherical model for Earth; actual shape is not perfectly spherical.
Defined examples — our methodology
The marked age is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 4.54 Gyr
We compare the age of Earth. The measurement is labelled reference interval. Check the source notes for its basis.
A rounded 4.54 billion-year geological age.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 4.54 Gyr | Not recorded | reference interval |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueTime and durationSince the non-avian dinosaurs66 MyrTimeThe interval since the non-avian dinosaurs marks the time since these dinosaurs disappeared from Earth.
Around the same scalePlanets, moons and spaceEarth4.54 GyrAgeEarth is the rocky planet on which we live and the third planet from the Sun.Nearest higher valueTime and durationAge of the universe13.8 GyrTimeThe age of the universe is the time since the Big Bang, marking the beginning of cosmic expansion.Sources and method
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Curated comparisons
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Follow your curiosity.
TimeBlink of an eye150 msA blink of an eye is the quick closing and opening of the eyelid, usually happening involuntarily.TimeHuman lifetime80 yearsA human lifetime is the span from a person's birth to their death.TimeAge of the universe13.8 GyrThe age of the universe is the time since the Big Bang, marking the beginning of cosmic expansion.SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
SpaceObservable universe28.21 GpcThe observable universe is the region from which light or other signals have had time to reach us since the early universe.TimeSince the non-avian dinosaurs66 MyrThe interval since the non-avian dinosaurs marks the time since these dinosaurs disappeared from Earth.TimeRecorded-history interval5 kyrThe recorded-history interval is the span for which humans have kept written or documented records.TimeA century100 yearsA century is a period of one hundred years.