Scale Explorer

Space

How big is Saturn?

Saturn

Equatorial diameter
120,536 km 74,897.6 mi
Polar radius
54,364 km 33,780 mi
Main rings outer radius
136,780 km 84,991 mi
Main rings radial width
≈ 62,120 km 38,600 mi approx.
Show
Human, Earth, Jupiter, Saturn drawn to the same scaleHuman: height 1.61–1.75 m (too small to see at this scale). Earth: equatorial diameter 12,756 km. Jupiter: equatorial diameter 142,984 km. Saturn: equatorial diameter 120,536 km.Human: 1.61–1.75 m (too small to see at this scale)Earth: 12,756 kmJupiter: 142,984 kmSaturn: 120,536 kmJupiter142,984 kmSaturn120,536 kmEarth12,756 kmHuman1.61–1.75 m · too small to see

Human is too small to see at this scale and is marked with ▲.

Everything is drawn to the same scale, standing on the same ground line. Silhouettes are simplified outlines scaled to the measured dimension. A faded outline shows the top of a size range.

Compare Saturn with something else →

Zoom out from an average adult to Saturn

Saturn is too big to show next to an average adult in one picture, so here it is in 9 steps. Each step is drawn to its own scale and zooms out from the step before.

  1. Step 1 of 9 Human → Megalodon

    A megalodon is about 8.6–15 times as long as an average adult is tall.

    Human, Megalodon drawn to the same scaleHuman: height 1.61–1.75 m. Megalodon: maximum length (estimates) 15–24.3 m.Human: 1.61–1.75 mMegalodon: 15–24.3 mMegalodon15–24.3 mHuman1.61–1.75 m
    Step 1: Human and Megalodon at the same scale.

  2. Step 2 of 9 Megalodon → Great Pyramid of Giza

    The Great Pyramid of Giza is about 5.6–9.1 times as tall as a megalodon is long.

    Megalodon, Great Pyramid of Giza drawn to the same scaleMegalodon: maximum length (estimates) 15–24.3 m. Great Pyramid of Giza: current height ≈ 137 m.Megalodon: 15–24.3 mGreat Pyramid of Giza: ≈ 137 mGreat Pyramid of Giza≈ 137 mMegalodon15–24.3 m
    Step 2: Megalodon and Great Pyramid of Giza at the same scale.

  3. Step 3 of 9 Great Pyramid of Giza → Golden Gate Bridge

    The Golden Gate Bridge is about 20 times as long as the Great Pyramid of Giza is tall.

    Great Pyramid of Giza, Golden Gate Bridge drawn to the same scaleGreat Pyramid of Giza: current height ≈ 137 m. Golden Gate Bridge: total length 2,737 m.Great Pyramid of Giza: ≈ 137 mGolden Gate Bridge: 2,737 mGolden Gate Bridge2,737 mGreat Pyramid of Giza≈ 137 m
    Step 3: Great Pyramid of Giza and Golden Gate Bridge at the same scale.

  4. Step 4 of 9 Golden Gate Bridge → Mount Everest

    Mount Everest is about 3.2 times as tall as the Golden Gate Bridge is long.

    Golden Gate Bridge, Mount Everest drawn to the same scaleGolden Gate Bridge: total length 2,737 m. Mount Everest: height above sea level 8,848.86 m.Golden Gate Bridge: 2,737 mMount Everest: 8,848.86 mMount Everest8,848.86 mGolden Gate Bridge2,737 m
    Step 4: Golden Gate Bridge and Mount Everest at the same scale.

  5. Step 5 of 9 Mount Everest → Mauna Kea

    Mauna Kea is about 1.2 times as tall as Mount Everest.

    Mount Everest, Mauna Kea drawn to the same scaleMount Everest: height above sea level 8,848.86 m. Mauna Kea: height from ocean floor to summit ≈ 10,211 m.Mount Everest: 8,848.86 mMauna Kea: ≈ 10,211 mMauna Kea≈ 10,211 mMount Everest8,848.86 m
    Step 5: Mount Everest and Mauna Kea at the same scale.

  6. Step 6 of 9 Mauna Kea → Olympus Mons

    Olympus Mons is about 2.2–2.6 times as high as Mauna Kea is tall.

    Mauna Kea, Olympus Mons drawn to the same scaleMauna Kea: height from ocean floor to summit ≈ 10,211 m. Olympus Mons: height 22–27 km.Mauna Kea: ≈ 10,211 mOlympus Mons: 22–27 kmOlympus Mons22–27 kmMauna Kea≈ 10,211 m
    Step 6: Mauna Kea and Olympus Mons at the same scale.

  7. Step 7 of 9 Olympus Mons → Mars

    Mars is about 250–310 times as wide as Olympus Mons is high.

    Olympus Mons, Mars drawn to the same scaleOlympus Mons: height 22–27 km. Mars: equatorial diameter 6,792 km.Olympus Mons: 22–27 kmMars: 6,792 kmMars6,792 kmOlympus Mons22–27 km
    Step 7: Olympus Mons and Mars at the same scale.

  8. Step 8 of 9 Mars → Uranus

    Uranus is about 7.5 times as wide as Mars.

    Mars, Uranus drawn to the same scaleMars: equatorial diameter 6,792 km. Uranus: equatorial diameter 51,118 km.Mars: 6,792 kmUranus: 51,118 kmUranus51,118 kmMars6,792 km
    Step 8: Mars and Uranus at the same scale.

  9. Step 9 of 9 Uranus → Saturn

    Saturn is about 2.4 times as wide as Uranus.

    Uranus, Saturn drawn to the same scaleUranus: equatorial diameter 51,118 km. Saturn: equatorial diameter 120,536 km.Uranus: 51,118 kmSaturn: 120,536 kmSaturn120,536 kmUranus51,118 km
    Step 9: Uranus and Saturn at the same scale.

Dimensions

MeasurementMetricImperialNotesSource
Equatorial diameter 120,536 km 74,897.6 mi Diameter at the equator, at the 1-bar pressure level [1] [4]
Polar radius 54,364 km 33,780 mi Centre to pole at the 1-bar level (equatorial radius is 60,268 km) [2]
Main rings outer radius 136,780 km 84,991 mi Distance from Saturn's centre to the outer edge of the A ring, the outermost main ring (2.270 equatorial radii) [3]
Main rings radial width ≈ 62,120 km ≈ 38,600 mi Radial extent of the A, B and C rings, inner to outer edge. Approximate [5]
Mass 5.6832 × 10²⁶ kg 1.2529 × 10²⁷ lb Total mass; source states 568.32 x 10^24 kg [2]
Volume 8.2713 × 10¹⁴ km³ 1.9844 × 10¹⁴ cu mi Source states 82,713 x 10^10 km3 [2]

About Saturn

Saturn is the sixth planet from the Sun and the second largest, a gas giant made mostly of hydrogen and helium. NASA's fact sheet gives an equatorial diameter of 120,536 km, about nine times Earth's width, and its fast spin flattens it noticeably at the poles. Its bright main rings (A, B and C) reach out to about 136,780 km from the planet's centre but are typically only about 10 m thick.

  • Saturn's equatorial radius is 60,268 km and its polar radius 54,364 km, a flattening of about 0.098. [2]
  • NASA describes Saturn as about 120,500 km (74,897 miles) across at the equator, 9 times wider than Earth. [4]
  • Saturn's ring system extends up to 282,000 km (175,000 miles) from the planet, yet the main rings are typically only about 10 m (30 ft) thick. [4]
  • The Cassini Division, the gap between the A and B rings, is about 4,700 km (2,920 miles) wide. [4]
  • Saturn's mean density is 687 kg/m3, lower than that of water. [2]

How many fit?

  • ≈ 72 million × Human · height lined up end to end match the Saturn · equatorial diameter
  • ≈ 6.8 × 10²⁴ × Human · body mass on the scales weigh as much as Saturn · mass
  • ≈ 35 × Moon · diameter lined up end to end match the Saturn · equatorial diameter
  • ≈ 7,700 × Moon · mass on the scales weigh as much as Saturn · mass
  • ≈ 38,000 × Moon · volume packed inside, by volume fill Saturn · volume

Counts divide one sourced figure by another. "End to end" uses each object's main measurement; weight and volume rows appear only when both figures are sourced.

How it compares

Factors compare the equatorial diameter of Saturn with each object’s own main measurement (height for a human). Where a size varies, the factor is given as a range.

Notes on these figures

  • No NASA page states an edge-to-edge span for the main rings, so no ringSpan measure is given and the profile uses only the planet's diameter. The NSSDCA ring sheet gives the A ring's outer edge as a radius from Saturn's centre (136,780 km, 2.270 times the equatorial radius), which the drawing can use for the ring proportion.
  • Giant-planet radii are measured at the level where atmospheric pressure is 1 bar, since Saturn has no solid surface.
  • NASA's Saturn facts page rounds the equatorial diameter to about 120,500 km; the NSSDCA table gives 120,536 km.
  • The drawing is scaled to the outer edge of the main rings; the planet disc inside it is drawn in proportion.

Sources

  1. NASA Space Science Data Coordinated Archive, Planetary Fact Sheet - Metric. Accessed 25 September 2026.
  2. NASA Space Science Data Coordinated Archive, Saturn Fact Sheet. Accessed 25 September 2026.
  3. NASA Space Science Data Coordinated Archive, Saturnian Rings Fact Sheet. Accessed 25 September 2026.
  4. NASA Science, Saturn: Facts. Accessed 25 September 2026.
  5. NASA Science, Saturn's Rings. Accessed 25 September 2026.

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