Eclipses Worldwide Calculator

During a total solar eclipse, the Moon completely covers the Sun's disk, briefly revealing the solar corona. In an annular eclipse, the Moon is farther from Earth and appears slightly smaller, leaving a visible 'ring of fire' around the Moon's silhouette. Both are stunning but require very different viewing expectations.

You can find your decimal-degree coordinates by searching your location on Google Maps and right-clicking on the map — your latitude and longitude appear at the top of the pop-up menu. Alternatively, your smartphone's GPS or a site like latlong.net will give you precise coordinates.

Visibility depends on your geographic position relative to the eclipse's path or penumbral shadow. The calculator estimates coverage percentage for your entered coordinates. If coverage shows 0%, the eclipse is not visible from that location. Even a partial eclipse with low coverage can be observed with appropriate solar filters.

Contact times mark key phases of the eclipse. First Contact (C1) is when the Moon's disk begins to overlap the Sun (or Earth's shadow touches the Moon). Second Contact (C2) marks the start of totality or annularity. Third Contact (C3) is the end of totality, and Fourth Contact (C4) is when the eclipse ends completely.

Altitude is the angle of the Sun or Moon above your horizon in degrees — 0° means it's on the horizon, 90° means directly overhead. Azimuth is the compass direction measured clockwise from North. These values tell you exactly where to look in the sky at the moment of maximum eclipse.

You must use certified ISO 12312-2 solar eclipse glasses or a solar filter for all phases of a solar eclipse except during the brief period of totality in a total solar eclipse. Never look at the partial phases with unprotected eyes or regular sunglasses. Lunar eclipses are completely safe to observe with the naked eye.

On average there are 4 to 7 eclipses per year worldwide, comprising solar and lunar eclipses in combination. Total solar eclipses happen somewhere on Earth about every 18 months, but because the path of totality is narrow, any single location experiences a total solar eclipse only about once every 375 years on average.

A penumbral lunar eclipse occurs when the Moon passes through Earth's faint outer shadow — it's subtle and often barely noticeable. A partial lunar eclipse means part of the Moon enters the dark umbral shadow. A total lunar eclipse — sometimes called a 'Blood Moon' — sees the entire Moon in the umbra, glowing red from refracted sunlight.