Size It Up

ALL ANSWERS · MIXED · DAILY No. 10 · SEPTEMBER 13, 2026

Size It Up answer: September 13

The five Mixed silhouettes for September 13, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.

Day 10 ran from a US dollar bill (15.6 cm) to the Tokyo Skytree (634 m). The widest gap was round 4, Megalodon against Polar Bear, at 6.7×; the closest call was round 5, US Dollar Bill against Basketball, only 1.5× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Plains Zebra vs John Deere 8R 410 (without front linkage)

    John Deere 8R 410 · reference · 6.065 m
    Plains Zebra · true length · 2.3 m

    2.6× shorter than the John Deere 8R 410

    A plains zebra is about 2.3 m from nose to rump — horse-sized, and no two stripe patterns match.

  2. ROUND 2

    Space Shuttle Orbiter vs Falcon 9

    Falcon 9 · reference · 70 m
    Space Shuttle Orbiter · true length · 37.2 m

    1.9× shorter than the Falcon 9

    The Space Shuttle orbiter was 37.2 m long — a 737 that flew to orbit and back.

  3. ROUND 3

    Tokyo Skytree vs Aircraft Carrier (USS Nimitz)

    Aircraft Carrier · reference · 333 m
    Tokyo Skytree · true height · 634 m

    1.9× taller than the aircraft carrier

    Tokyo Skytree stands 634 m tall, the tallest tower in the world.

  4. ROUND 4

    Megalodon vs Polar Bear (Male)

    Polar Bear · reference · 2.4 m
    Megalodon · true length · 16 m

    6.7× longer than the polar bear

    Megalodon reached about 16 m — more than three great whites end to end.

  5. ROUND 5

    US Dollar Bill vs Basketball

    Basketball · reference · 24 cm
    US Dollar Bill · true length · 15.6 cm

    1.5× shorter than the basketball

    A dollar bill is 15.6 cm long — every US note is the same size.

Beat these tomorrow

Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.

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Choose a categoryPLAYING DAILY
MixedAnimals, planets and everyday things. AnimalsLength, height or wingspan — every round names the axis. GeographyEast–west or north–south span, never area. Pop CultureCheck the version. Compare the measured dimension. VehiclesLength end to end, or height for the ones that stand upright. DinosaursCompare estimated body length, from snout to tail tip. SpaceCompare body diameter. Rings and orbital distances are excluded. Everyday ObjectsLength, height or width — every round names the axis. InsectsBody length or wingspan — read the named measurement. LandmarksRead the named height, length or main span — including its endpoints. Food & DrinkRead the selected size and axis — length, diameter or container height.
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