Adult in diving gear
An adult in diving gear is a person equipped with scuba apparatus for breathing and moving underwater.
Also known as: scuba diver standing, adult wearing scuba gear
How big is it?
1.78 m · defined standing height
Also 5.84 ft
Defined standing height · defined specimen

A little perspective
Adult in diving gear vs Adult in firefighting gear: height comparison
The standing height of an adult in diving gear is approximately equal to the standing height of an adult in firefighting gear.
An adult in diving gear is a person equipped with scuba apparatus for breathing and moving underwater.
An adult in firefighting gear is a person wearing protective clothing and breathing apparatus for structural firefighting.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Adult in diving gear
Defined standing height: 1.78 m; defined specimen.
A defined 1.78 m, 75 kg standing adult wearing 23 kg of recreational scuba equipment, for a combined dry mass of 98 kg. Gas use, suit, cylinder and weights vary; buoyancy underwater is a separate quantity.
The marked defined standing height is calibrated. Unmeasured illustration details are representative.
Adult in firefighting gear
Defined standing height: 1.78 m; defined specimen.
A defined 1.78 m, 75 kg standing adult wearing 18 kg of structural firefighting clothing and breathing equipment, for a combined mass of 93 kg. This is a comparison specimen, not a load limit.
NIST — Firefighter protective equipment
The marked defined standing height is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 1.78 m
We compare the standing height of an adult in diving gear. This is an illustrative comparison value, not a claim that every example is the same.
A defined 1.78 m, 75 kg standing adult wearing 23 kg of recreational scuba equipment, for a combined dry mass of 98 kg. Gas use, suit, cylinder and weights vary; buoyancy underwater is a separate quantity.
The marked vertical span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 1.78 m | Not recorded | defined specimen | |
| 98 kg | 90 kg to 110 kg | defined specimen |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valuePeople and human anatomyHuman1.75 mHeightA human is a primate of the species Homo sapiens, distinguished by habitual upright walking, language and complex tool use.
Around the same scalePeople and human anatomyAdult in firefighting gear1.78 mDefined standing heightAn adult in firefighting gear is a person wearing protective clothing and breathing apparatus for structural firefighting.
Nearest higher valuePeople and human anatomyAdult in a spacesuit1.9 mDefined suited standing heightAn adult in a spacesuit is a person wearing a pressurised suit and life-support system for survival outside Earth's atmosphere.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- PADI — Scuba gearRecreational scuba-equipment configuration and component context; the atlas uses an explicit dry person-and-gear mass.
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