Instant · Precise · Universal
32 units available
6 categories total
To convert pm to meters: multiply by 10⁻¹². To convert pm to angstroms: divide by 100.
1 pm = 10⁻¹² m = 0.01 Å = 1,000 fm. One nanometer equals 1,000 picometers.
For example, 1 Picometer (pm) = 1.000000e-24 Terameter (Tm).
| Picometer (pm) | Terameter (Tm) |
|---|---|
| 0.1 | 1.000000e-25 |
| 0.5 | 5.000000e-25 |
| 1 | 1.000000e-24 |
| 2 | 2.000000e-24 |
| 5 | 5.000000e-24 |
| 10 | 1.000000e-23 |
| 25 | 2.500000e-23 |
| 50 | 5.000000e-23 |
| 100 | 1.000000e-22 |
| 500 | 5.000000e-22 |
| 1000 | 1.000000e-21 |
The picometer is a unit of length equal to 10⁻¹² meters, or one trillionth of a meter.
1 pm = 10⁻¹² m = 0.01 Å = 1,000 fm. One nanometer equals 1,000 picometers.
To convert pm to meters: multiply by 10⁻¹². To convert pm to angstroms: divide by 100.
Expressing covalent bond lengths (e.g., C–C bond ≈ 154 pm), atomic radii, and crystal lattice spacings.
The hydrogen atom has a radius of about 53 pm (the Bohr radius), while a carbon-carbon single bond is about 154 pm long.
Mixing up picometers and nanometers — remember 1 nm = 1,000 pm. Some sources still use the deprecated angstrom.
Think of pm as the natural unit for atoms: most atomic radii fall between 30 pm and 300 pm.
The terameter is a unit of length equal to 10¹² meters, or one trillion meters (one billion kilometers).
1 Tm = 10¹² m = 10⁹ km = 6.685 AU.
To convert Tm to AU: multiply by 6.685. To convert Tm to km: multiply by 10⁹.
Expressing outer solar system distances in metric form, though AU is standard.
One light-hour is approximately 1.08 Tm. The distance to Pluto's orbit is roughly 5.9 Tm.
Confusing tera (10¹²) with other large prefixes. Remember: tera comes after giga in the SI scale.
Think of the outer solar system: Saturn is about 1.4 Tm from the Sun, a good mental anchor.



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