The Earth takes about 365.24 days to complete one full orbit around the Sun. This period is commonly called one year. The Earth's orbit is slightly elliptical, and it travels approximately 940 million kilometers (584 million miles) during this time at an average speed of about 108,000 km/h (67,000 mph).
More precisely, this orbital period is about 365.256 days (a sidereal year) relative to distant stars, while the solar year (365.24 days) aligns closely with the seasonal cycle on Earth. The extra roughly 6 hours beyond 365 days is why a leap year occurs every four years to keep our calendar aligned with Earth's orbit.