size it up.

A little perspective

Trust your eye.

Use the country on the left as your reference. Resize the country on the right until its east–west width or north–south height looks correct, then lock in your estimate.

  1. Compare

    North is up. Compare width or height, not land area.

  2. Find the right size

    Drag the blue handle, scroll while hovering it, tap − / +, or use the arrow keys. Match the dimension in the question.

  3. Lock it in

    Reveal the real size and earn up to 100 points. Five rounds add up to a maximum of 500.

The first answer in each round counts. A new challenge arrives every day at 00:00 UTC. Object sizes use the specific examples shown in the answer.

Read the full rules and scoring guide
Practice · not ranked
All past challenges

How wide is Guinea-Bissau compared with Bolivia?

North is up. Compare width or height, not land area.

01 / 05
Bolivia, reference object for east–west width comparison
Guinea-Bissau, estimated east–west width relative to the Bolivia
BoliviaReference
Guinea-BissauYour estimate
Fine tune
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View answers and sources

Answers from this past challenge. Today’s challenge remains a surprise.

Simplified outlines from Natural Earth face north. Answers give approximate east–west or north–south spans in kilometres, not land areas or the distance between the farthest points. Some remote islands are omitted; each answer explains the included territory.

  1. Round 1

    How wide is Guinea-Bissau compared with Bolivia?

    Bolivia, used for the east–west width comparison
    ReferenceBolivia≈ 1,300 km east–west
    Guinea-Bissau, used for the east–west width comparison
    Compared objectGuinea-Bissau≈ 330 km east–west

    Illustrations shown individually, not to a shared scale.

    Actual size ratio

    ≈ 0.255×

    Guinea-Bissau ÷ Bolivia, comparing east–west width.

    This simplified Natural Earth outline of Guinea-Bissau shows the territory and islands represented in this dataset. Its approximate east–west span is 330 km in a local equirectangular projection corrected at the outline's middle latitude. This is a projected extent, not land area.

    Measurement source · naturalearthdata.com

  2. Round 2

    How wide is Senegal compared with Myanmar (Burma)?

    Myanmar (Burma), used for the east–west width comparison
    ReferenceMyanmar (Burma)≈ 940 km east–west
    Senegal, used for the east–west width comparison
    Compared objectSenegal≈ 660 km east–west

    Illustrations shown individually, not to a shared scale.

    Actual size ratio

    ≈ 0.7034×

    Senegal ÷ Myanmar (Burma), comparing east–west width.

    This simplified Natural Earth outline of Senegal shows the territory and islands represented in this dataset. Its approximate east–west span is 660 km in a local equirectangular projection corrected at the outline's middle latitude. This is a projected extent, not land area.

    Measurement source · naturalearthdata.com

  3. Round 3

    How wide is Micronesia compared with Italy?

    Italy, used for the east–west width comparison
    ReferenceItaly≈ 980 km east–west
    Micronesia, used for the east–west width comparison
    Compared objectMicronesia≈ 2,750 km east–west

    Illustrations shown individually, not to a shared scale.

    Actual size ratio

    ≈ 2.8×

    Micronesia ÷ Italy, comparing east–west width.

    This simplified Natural Earth outline of Micronesia shows the territory and islands represented in this dataset. Its approximate east–west span is 2,750 km in a local equirectangular projection corrected at the outline's middle latitude. This is a projected extent, not land area.

    Measurement source · naturalearthdata.com

  4. Round 4

    How wide is Vietnam compared with Timor-Leste?

    Timor-Leste, used for the east–west width comparison
    ReferenceTimor-Leste≈ 360 km east–west
    Vietnam, used for the east–west width comparison
    Compared objectVietnam≈ 780 km east–west

    Illustrations shown individually, not to a shared scale.

    Actual size ratio

    ≈ 2.184×

    Vietnam ÷ Timor-Leste, comparing east–west width.

    This simplified Natural Earth outline of Vietnam shows the mainland and nearby islands. Its approximate east–west span is 780 km in a local equirectangular projection corrected at the outline's middle latitude. This is a projected extent, not land area.

    Measurement source · naturalearthdata.com

  5. Round 5

    How wide is Iceland compared with Hungary?

    Hungary, used for the east–west width comparison
    ReferenceHungary≈ 510 km east–west
    Iceland, used for the east–west width comparison
    Compared objectIceland≈ 510 km east–west

    Illustrations shown individually, not to a shared scale.

    Actual size ratio

    ≈ 1.002×

    Iceland ÷ Hungary, comparing east–west width.

    This simplified Natural Earth outline of Iceland shows the main island. Its approximate east–west span is 510 km in a local equirectangular projection corrected at the outline's middle latitude. This is a projected extent, not land area.

    Measurement source · naturalearthdata.com
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