Body length300 millionths m
200 millionthsBathtub lengths
9.4 thousandthsSD card lengths
3.5 thousandthsCredit card lengths
About 0.3 mm
Photo from Wikimedia Commons
Dust Mite
The invisible roommate living in your pillow by the millions/Microscopic Life
Dust mites are 0.3 mm arachnids that feed on dead skin flakes, and your mattress is an all-you-can-eat buffet. An average bed contains roughly 2 million of them. They don't bite or burrow, but their fecal pellets are one of the most common allergen triggers worldwide. Each mite produces about 20 droppings per day.
Measurements
Body mass5.7 billionths kg
190 trillionthsGolden retrievers
63.3 trillionthsHome safes
127 trillionthsGrocery carts
About 5.7 micrograms
Fecal pellet diameter20 millionths m
2.5 thousandthsLadybugs
833 sextillionthsVoyager 1 distances
909 millionthsAlmond lengths
About 20 micrometers
Lifespan5.2 million s
20.7 quadrillionProcessor cycles
5.4 tenthsSchool semesters
5.2 billionCamera flash durations
About 60-90 days
Preferred temperature298 K
9.7 tenthsChocolate melting points
8.8 tenthsSun-baked car interiors
1.53Dry ice surfaces
About 25 C
Walking speed1 thousandths m/s
95.8 millionthsUsain Bolts
33.6 billionthsEarth orbit speeds
2 thousandthsShopping carts
About 1 mm per second