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Water molecule vs DNA vs virus vs Bacterium vs Red blood cell vs…

This comparison shows 24 objects drawn to scale. Drag the view to rotate it, or add your own items to the comparison.

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Size comparison of water molecule (0.7 × 0.6 × 0.6 nm), DNA (0 × 0 × 0 m), virus (830 × 800 × 830 nm), Bacterium (1,000 × 1,000 × 1,000 nm), Red blood cell (7 × 7 × 7 um), Pollen Grain (50.0 × 50.0 × 50.0 um), and 18 more, drawn to scale
Dimensions (height × width × depth)
ObjectAs enteredCentimetresInches
water molecule0.7 × 0.6 × 0.6 nm0 × 0 × 0 cm0 × 0 × 0 in
DNA0 × 0 × 0 m0 × 0 × 0 cm0 × 0 × 0 in
virus830 × 800 × 830 nm0 × 0 × 0 cm0 × 0 × 0 in
Bacterium1,000 × 1,000 × 1,000 nm0 × 0 × 0 cm0 × 0 × 0 in
Red blood cell7 × 7 × 7 um0 × 0 × 0 cm0 × 0 × 0 in
Pollen Grain50.0 × 50.0 × 50.0 um0.01 × 0.01 × 0.01 cm0 × 0 × 0 in
Grain of sand800 × 785 × 800 um0.08 × 0.08 × 0.08 cm0.03 × 0.03 × 0.03 in
Snowflake1 × 1 × 1 mm0.1 × 0.1 × 0.1 cm0.04 × 0.04 × 0.04 in
Ant7 × 7 × 7 mm0.7 × 0.7 × 0.7 cm0.28 × 0.28 × 0.28 in
coin3 × 3 × 3 cm3 × 3 × 3 cm1.18 × 1.18 × 1.18 in
apple40.0 × 11.0 × 34.0 mm4 × 1.1 × 3.4 cm1.57 × 0.43 × 1.34 in
Dog67.0 × 1 × 1 cm67.0 × 1 × 1 cm26.4 × 0.39 × 0.39 in
Human1 × 1 × 1 m100 × 100 × 100 cm39.4 × 39.4 × 39.4 in
horse12.0 × 4 × 4 in30.5 × 10.2 × 10.2 cm12.0 × 4 × 4 in
horse12.0 × 4 × 4 in30.5 × 10.2 × 10.2 cm12.0 × 4 × 4 in
car157 × 56.0 × 67.0 in399 × 142 × 170 cm157 × 56.0 × 67.0 in
bus14.0 × 3 × 4.4 in35.6 × 7.62 × 11.2 cm14.0 × 3 × 4.4 in
Castle107 × 31.0 × 74.0 cm107 × 31.0 × 74.0 cm42.1 × 12.2 × 29.1 in
Castle107 × 31.0 × 74.0 cm107 × 31.0 × 74.0 cm42.1 × 12.2 × 29.1 in
Castle107 × 31.0 × 74.0 cm107 × 31.0 × 74.0 cm42.1 × 12.2 × 29.1 in
Rocket32.8 × 12.5 × 23.5 cm32.8 × 12.5 × 23.5 cm12.9 × 4.92 × 9.25 in
Rocket32.8 × 12.5 × 23.5 cm32.8 × 12.5 × 23.5 cm12.9 × 4.92 × 9.25 in
ROCKET V2350 × 150 × 270 mm35.0 × 15.0 × 27.0 cm13.8 × 5.91 × 10.6 in
ROCKET V2350 × 150 × 270 mm35.0 × 15.0 × 27.0 cm13.8 × 5.91 × 10.6 in
Bounding-box volumes as bars: water molecule 2.5 × 10<sup>−19</sup> mm³, DNA 8 × 10<sup>−18</sup> mm³, virus 5.5 × 10<sup>−10</sup> mm³, Bacterium 1 × 10<sup>−9</sup> mm³, Red blood cell 3.4 × 10<sup>−7</sup> mm³, Pollen Grain 1.3 × 10<sup>−4</sup> mm³, Grain of sand 0.5 mm³, Snowflake 1 mm³, Ant 343 mm³, coin 27.0 cm³
Bounding-box volume*
ObjectVolumevs smallest
water molecule2.5 × 10−19 mm³1×
DNA8 × 10−18 mm³32×
virus5.5 × 10−10 mm³>1,000,000×
Bacterium1 × 10−9 mm³>1,000,000×
Red blood cell3.4 × 10−7 mm³>1,000,000×
Pollen Grain1.3 × 10−4 mm³>1,000,000×
Grain of sand0.5 mm³>1,000,000×
Snowflake1 mm³>1,000,000×
Ant343 mm³>1,000,000×
coin27.0 cm³>1,000,000×
apple15.0 cm³>1,000,000×
Dog67.0 cm³>1,000,000×
Human1 m³>1,000,000×
horse3.15 litres>1,000,000×
horse3.15 litres>1,000,000×
car9.65 m³>1,000,000×
bus3.03 litres>1,000,000×
Castle245 litres>1,000,000×
Castle245 litres>1,000,000×
Castle245 litres>1,000,000×
Rocket9.64 litres>1,000,000×
Rocket9.64 litres>1,000,000×
ROCKET V214.2 litres>1,000,000×
ROCKET V214.2 litres>1,000,000×

* Height × width × depth of the box each object fits in, not the object's own volume. Multiples are against the smallest box here, water molecule. Anything beyond a million times bigger is shown as >1,000,000×.

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