Convert Attogram to Poundal
Convert attograms to poundals instantly. 1 attogram = 7.098885e-20 poundal — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Poundal to Attogram converter for the reverse conversion.
Units explained
Attogram
An attogram (ag) equals 10^-21 kilogram.
From the SI prefix 'atto-' (from Danish 'atten', eighteen).
Frontier nanoscience and single-molecule mass detection.
The atto- prefix was adopted by the CGPM in 1975.
Poundal
The poundal (pdl) is the FPS absolute unit of force; its mass-equivalent on this scale is about 0.0141 kg.
Defined in the foot-pound-second absolute system in the late 19th century.
Early 20th-century physics and engineering.
Introduced in the absolute FPS system as an alternative to gravitational units.
Attogram to Poundal conversion formula
The relationship between attograms and poundals:
To convert attograms to poundals, multiply the value in attograms by 7.098885e-20. To reverse, multiply poundals by 1.408672e+19.
How to use this converter
Type a value into the calculator. The result in poundals updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Poundal to Attogram converter for the reverse direction.
Step-by-step: convert attograms to poundals
- Write down the value in attograms (ag).
- Multiply that value by the factor 7.098885e-20.
- The product is the equivalent value in poundals (pdl).
- To reverse, multiply the poundal value by 1.408672e+19.
Worked examples
Example 1 — Convert 1 ag to pdl:
1 × 7.098885e-20 = 7.098885e-20 pdl
Example 2 — Convert 100 ag to pdl:
100 × 7.098885e-20 = 7.098885e-18 pdl
Real-world example — From wavelengths to millimeter-scale objects
A value of one million attograms sounds vast at the atomic scale but converts to a small everyday quantity in poundals — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 ag × 7.098885e-20 = 7.098885e-14 pdl
Real-world example — Sub-micron to millimeter
500,000 attograms converts to a small everyday quantity in poundals — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 ag × 7.098885e-20 = 3.549442e-14 pdl
Attogram to Poundal conversion table
Standard reference values for converting attograms to poundals:
| Attogram [ag] | Poundal [pdl] |
|---|---|
| 0.01 | 7.098885e-22 |
| 0.1 | 7.098885e-21 |
| 1 | 7.098885e-20 |
| 2 | 1.419777e-19 |
| 3 | 2.129665e-19 |
| 4 | 2.839554e-19 |
| 5 | 3.549442e-19 |
| 10 | 7.098885e-19 |
| 20 | 1.419777e-18 |
| 30 | 2.129665e-18 |
| 40 | 2.839554e-18 |
| 50 | 3.549442e-18 |
| 100 | 7.098885e-18 |
| 500 | 3.549442e-17 |
| 1000 | 7.098885e-17 |
Frequently asked questions
How many poundals is 1 attogram?
How do I convert attograms to poundals?
How do I convert poundals back to attograms?
How many poundals is 100 attograms?
Popular weight unit conversions
Convert Attogram to other weight units
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Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 ag = 7.098885e-20 pdl) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.