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How tall is Tokyo Skytree?

Tokyo Skytree · Broadcasting and observation tower, Oshiage, Sumida, Tokyo

Maximum height
634 m 2,080 ft
Side of the triangular base
≈ 68 m 220 ft approx.
Weight of the steel tower
≈ 36,000 t 40,000 US tons approx.
Show
Human, Great Pyramid of Giza, Aircraft carrier, Tokyo Skytree drawn to the same scaleHuman: height 1.61–1.75 m (too small to see at this scale). Great Pyramid of Giza: current height ≈ 137 m. Aircraft carrier: length 337.1 m. Tokyo Skytree: maximum height 634 m.Human: 1.61–1.75 m (too small to see at this scale)Great Pyramid of Giza: ≈ 137 mAircraft carrier: 337.1 mTokyo Skytree: 634 mTokyo Skytree634 mGreat Pyramid of Giza≈ 137 mAircraft carrier337.1 mHuman1.61–1.75 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 Tokyo Skytree with something else →

Zoom out from an average adult to Tokyo Skytree

Tokyo Skytree is too big to show next to an average adult in one picture, so here it is in 3 steps. Each step is drawn to its own scale and zooms out from the step before.

  1. Step 1 of 3 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 3 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 3 Great Pyramid of Giza → Tokyo Skytree

    Tokyo Skytree is about 4.6 times as tall as the Great Pyramid of Giza.

    Great Pyramid of Giza, Tokyo Skytree drawn to the same scaleGreat Pyramid of Giza: current height ≈ 137 m. Tokyo Skytree: maximum height 634 m.Great Pyramid of Giza: ≈ 137 mTokyo Skytree: 634 mTokyo Skytree634 mGreat Pyramid of Giza≈ 137 m
    Step 3: Great Pyramid of Giza and Tokyo Skytree at the same scale.

Dimensions

MeasurementMetricImperialNotesSource
Maximum height 634 m 2,080 ft Official maximum height of the tower [1] [2]
Side of the triangular base ≈ 68 m ≈ 220 ft Length of one side of the tower's triangular foot. Approximate [2]
Weight of the steel tower ≈ 36,000 t ≈ 40,000 US tons Total weight of the tower's steel framework including the observation decks (given as 約36,000t on the Japanese page). Approximate [2]

About Tokyo Skytree

Tokyo Skytree is a steel broadcasting and observation tower in the Oshiage district of Sumida, Tokyo, completed in 2012 and responsible for transmitting terrestrial digital broadcasts. Its height was first planned at about 610 m and later fixed at 634 m, a number that can be read as 'Musashi', the old province that included the site. Guinness World Records certified it as the world's tallest tower on 17 November 2011. It stands on a triangular footprint with sides of about 68 m, and its observation decks are at floors 350 and 450.

  • Guinness World Records certified the 634 m tower as the world's tallest tower on 17 November 2011. [1]
  • The steel pipes at the base of the tower are 2.3 m across with walls 10 cm thick; the first above-ground section, raised in April 2009, was about 4 m tall and weighed about 29 tons. [3]
  • Its earthquake damping uses a 'mass addition mechanism' that can cut the response shear force by about 40% in a major earthquake, an approach compared with the central pillar of traditional five-storey pagodas. [3]
  • When its site was chosen in 2006, Japan's tallest structure was the 1958 Tokyo Tower at about 333 m, roughly half Skytree's height. [3]

How many fit?

  • ≈ 380 × Human · height lined up end to end match the Tokyo Skytree · maximum height
  • ≈ 430,000 × Human · body mass on the scales weigh as much as Tokyo Skytree · weight of the steel tower
  • ≈ 3.3 × Gateway Arch · maximum height lined up end to end match the Tokyo Skytree · maximum height
  • ≈ 7.8 × Gateway Arch · total steel weight on the scales weigh as much as Tokyo Skytree · weight of the steel tower

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

  • 380× Tokyo Skytree is about 380 times as tall as an average adult. See side by side
  • 3.3× Tokyo Skytree is about 3.3 times as tall as the Gateway Arch. See side by side
  • 2.4× Tokyo Skytree is about 2.4 times as tall as the Titanic is long. See side by side
  • 1.6× Tokyo Skytree is about 1.6 times as tall as a container ship is long. See side by side
  • 1.2× Tokyo Skytree is about 1.2 times as tall as One World Trade Center. See side by side
  • 1/1.3 The Burj Khalifa is about 1.3 times as tall as Tokyo Skytree. See side by side

Factors compare the maximum height of Tokyo Skytree 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

  • The weight is the official figure for the tower's steel framework including the observation decks.
  • The official structure page also calls the height 'approximately 634 meters'; the specifications page gives 634 m as the maximum height.

Sources

  1. TOKYO SKYTREE (official site), TOKYO SKYTREE Specifications (Height: 634m). Accessed 25 September 2026.
  2. TOKYO SKYTREE (official site), Outline. Accessed 25 September 2026.
  3. TOKYO SKYTREE (official site), Structural Design. Accessed 25 September 2026.

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