15 kilograms
15 kgMass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mass
Just how heavy is 15 kilograms?
Everyday mass
15 kg
15 kilograms
The quantity is exact as entered.
15 kgMass in kilograms
0 kg
Explorer 1
Explorer 1 was the first satellite launched by the United States, carrying scientific instruments to study Earth's radiation environment.
13.97 kgLaunch mass in kilograms
0 kg
Bar length measures mass, not physical size. Both bars start at zero kilograms (kg). Pictures identify the objects only.
A little perspective
15 kilograms is about 1.07 times the launch mass of Explorer 1.
Measurements, assumptions & sources +
15 kilograms
Mass: 15 kg; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Explorer 1
Launch mass: 13.97 kg; specified; range 13.9 kg–14.1 kg.
Explorer 1, the first US satellite, was about 2.03 m long and 14 kg including its instrumented cylindrical body. Antennas are contextual.
The marked launch mass is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 15 kilograms with the launch mass of Explorer 1. The notes below explain how each value was chosen.
Explorer 1
13.97 kgLaunch mass · specified · range 13.9 kg–14.1 kg
Explorer 1, the first US satellite, was about 2.03 m long and 14 kg including its instrumented cylindrical body. Antennas are contextual.
- Comparing
- Mass ↔ Launch mass
- Relative size
- 15 kilograms is about 1.07 times the launch mass of Explorer 1. 15 kilograms is approximately 7.37% greater than the launch mass of Explorer 1.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- We use 13.97 kg for the launch mass of Explorer 1; the recorded range is 13.9 kg–14.1 kg.
Mass is distinct from weight: an object’s mass stays the same as gravity changes.
33.069 lbpounds
0.015 ttonnes
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