1 picogram
1 pgMass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mass
Just how heavy is 1 picogram?
Particles & molecules
1 pg
1 picogram
The quantity is exact as entered.
1 × 10⁻¹⁵ kgMass in kilograms
0 kg
Bacterium
A bacterium is a single-celled microorganism without a membrane-bound nucleus.
1 × 10⁻¹⁵ kgMass 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
1 picogram is approximately equal to the mass of a bacterium.
Measurements, assumptions & sources +
1 picogram
Mass: 1 pg; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Bacterium
Mass: 1 pg; defined specimen.
A 2 µm long illustrative bacterium. Species and growth conditions vary.
An illustrative mass chosen for this teaching specimen, stored independently from its size. Actual composition, hydration and specimen dimensions vary.
Defined examples — our methodology
The marked mass is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1 picogram with the mass of a bacterium. The notes below explain how each value was chosen.
Bacterium
1 pgMass · defined specimen
A 2 µm long illustrative bacterium. Species and growth conditions vary.
- Comparing
- Mass ↔ Mass
- Relative size
- 1 picogram is approximately equal to the mass of a bacterium.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- Bacterium: An illustrative mass chosen for this teaching specimen, stored independently from its size. Actual composition, hydration and specimen dimensions vary.
Mass is distinct from weight: an object’s mass stays the same as gravity changes.
1 × 10⁻¹⁵ kgkilograms
2.2046 × 10⁻¹⁵ lbpounds
1 × 10⁻¹⁸ ttonnes
Change your perspective
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A little smaller. A little larger.