Gravitational attraction between two one-kilogram masses one metre apart
This is the gravitational force acting between two one-kilogram objects placed one metre apart in a vacuum.
How big is it?
6.7 × 10⁻¹¹ N of force
Force · specified
A little perspective
About 1.34 times the representative stretching force of Single DNA molecule stretching force.
Single DNA molecule stretching force: Single DNA molecule stretching force is the force required to extend a single DNA strand under controlled laboratory conditions.
Measurements, assumptions & sources +
Gravitational attraction between two one-kilogram masses one metre apart
A curated gravitational attraction between two one-kilogram masses one metre apart comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.
Defined examples — our methodology
The marked force is calibrated. Unmeasured illustration details are representative.
Single DNA molecule stretching force
A representative 50 pN single-molecule force in the DNA stretching regime. Measured force depends on construct, contour state, buffer, temperature and pulling protocol; the molecular image is schematic.
NIST — DNA stretching measurements
The marked representative stretching force is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 6.7 × 10⁻¹¹ N
For comparison, this page uses force. The record labels this value specified, so the stated convention rather than an inferred average controls the comparison.
A curated gravitational attraction between two one-kilogram masses one metre apart comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Gravitational attraction between two one-kilogram masses one metre apart dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 6.7 × 10⁻¹¹ N | Not recorded | specified |
Around this scale
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These links use compatible weight records, ordered around the selected value.
Nearest lower value · Fundamental physicsSingle DNA molecule stretching force5 × 10⁻¹¹ NSingle DNA molecule stretching force is the force required to extend a single DNA strand under controlled laboratory conditions.Nearest higher value · GravityEarth-Moon L1 tidal acceleration over one kilometre8.03 × 10⁻⁸ NEarth-Moon L1 tidal acceleration over one kilometre is the difference in gravitational pull experienced across a one-kilometre distance near the Earth-Moon L1 point.Sources and method
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The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
Fundamental physicsSingle DNA molecule stretching force5 × 10⁻¹¹ NSingle DNA molecule stretching force is the force required to extend a single DNA strand under controlled laboratory conditions.GravityEarth-Moon L1 tidal acceleration over one kilometre8.03 × 10⁻⁸ NEarth-Moon L1 tidal acceleration over one kilometre is the difference in gravitational pull experienced across a one-kilometre distance near the Earth-Moon L1 point.GravityGravitational attraction between two people one metre apart3 × 10⁻⁷ NThis is the gravitational force that two people exert on each other when separated by one metre.
GravityLISA Pathfinder free-falling test mass5 × 10⁻¹⁵ NThe LISA Pathfinder free-falling test mass is a precisely controlled object in space used to demonstrate technologies for detecting gravitational waves by minimising non-gravitational forces.
Fundamental physicsSnowflake aerodynamic drag1 × 10⁻⁶ NSnowflake aerodynamic drag is the resistive force experienced by a falling snowflake as it moves through air.Fundamental physicsPhoton pressure thrust per kilowatt6.7 × 10⁻⁶ NPhoton pressure thrust per kilowatt is the force generated when one kilowatt of light is absorbed or reflected, due to photon momentum.Fundamental physicsRadiation pressure on a laser mirror7 × 10⁻⁶ NRadiation pressure on a laser mirror is the force exerted by a laser beam as its photons strike and reflect from the mirror.Fundamental physicsRaindrop aerodynamic drag0.0003 NRaindrop aerodynamic drag is the force exerted by air resistance on a falling raindrop as it moves through the atmosphere.