Size It Up

ALL ANSWERS · MIXED · DAILY No. 14 · SEPTEMBER 17, 2026

Size It Up answer: September 17

The five Mixed silhouettes for September 17, 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 14 ran from a tardigrade (0.5 mm) to the Wright Flyer (6.4 m). The widest gap was round 2, Tardigrade against Copepod, at 6.0×; the closest call was round 3, Tesla Cybertruck against Wright Flyer, only 1.1× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Propane Tank (20 lb steel, US) vs European Robin (adult)

    European Robin · reference · 13 cm
    Propane Tank · true height · 43.69 cm

    3.4× taller than the European robin

    This 20-pound steel propane cylinder is 43.688 cm high, including its protective collar.

  2. ROUND 2

    Tardigrade (adult) vs Copepod (adult)

    Copepod · reference · 3 mm
    Tardigrade · true length · 0.5 mm

    6.0× shorter than the copepod

    A tardigrade is about 0.5 mm long and survives freezing, drying out and the vacuum of space.

  3. ROUND 3

    Tesla Cybertruck vs Wright Flyer

    Wright Flyer · reference · 6.4 m
    Tesla Cybertruck · true length · 5.683 m

    1.1× shorter than the Wright Flyer

    Cybertruck is about 5.68 m long with the tailgate closed — its straight roof edges can disguise that length.

  4. ROUND 4

    Sea Otter vs Big-belly Seahorse (adult)

    Big-belly Seahorse · reference · 35 cm
    Sea Otter · true length · 1.3 m

    3.7× longer than the big-belly seahorse

    A sea otter is about 1.3 m long and has the densest fur of any animal — up to a million hairs per square inch.

  5. ROUND 5

    Common Frog (adult, body) vs Basketball

    Basketball · reference · 24 cm
    Common Frog · true length · 7 cm

    3.4× shorter than the basketball

    An adult common frog's body is about 7 cm long; the species runs from 6 to 9 cm.

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.

Play today’s fivePlay unlimited
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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