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Quectonepers (qNp) Unit Definition
The quectoneper is a multiple of the unit neper (Np) for sound level. The International System of Units (SI) defines the prefix quecto (q) as a factor of 10-30 or 0.000000000000000000000000000001. Per this definition, one quectoneper is 10-30 nepers. The quectoneper is represented by the symbol qNp.
SI Multiples
A table of various sound level neper units derived from SI multiples:
Submultiples |
Multiples |
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Scientific Notation |
Value |
Prefix |
Name |
Scientific Notation |
Value |
Prefix |
Name |
10-1 Np |
0.1 Np |
Deci (d) | Decinepers (dNp) | 101 Np |
10 Np |
Deca (da) | Decanepers (daNp) |
10-2 Np |
0.01 Np |
Centi (c) | Centinepers (cNp) | 102 Np |
100 Np |
Hecto (h) | Hectonepers (hNp) |
10-3 Np |
0.001 Np |
Milli (m) | Millinepers (mNp) | 103 Np |
1000 Np |
Kilo (k) | Kilonepers (kNp) |
10-6 Np |
0.000001 Np |
Micro (µ) | Micronepers (µNp) | 106 Np |
1000000 Np |
Mega (M) | Meganepers (MNp) |
10-9 Np |
0.000000001 Np |
Nano (n) | Nanonepers (nNp) | 109 Np |
1000000000 Np |
Giga (G) | Giganepers (GNp) |
10-12 Np |
0.000000000001 Np |
Pico (p) | Piconepers (pNp) | 1012 Np |
1000000000000 Np |
Tera (T) | Teranepers (TNp) |
10-15 Np |
0.000000000000001 Np |
Femto (f) | Femtonepers (fNp) | 1015 Np |
1000000000000000 Np |
Peta (P) | Petanepers (PNp) |
10-18 Np |
0.000000000000000001 Np |
Atto (a) | Attonepers (aNp) | 1018 Np |
1000000000000000000 Np |
Exa (E) | Exanepers (ENp) |
10-21 Np |
0.000000000000000000001 Np |
Zepto (z) | Zeptonepers (zNp) | 1021 Np |
1000000000000000000000 Np |
Zetta (Z) | Zettanepers (ZNp) |
10-24 Np |
0.000000000000000000000001 Np |
Yocto (y) | Yoctonepers (yNp) | 1024 Np |
1000000000000000000000000 Np |
Yotta (Y) | Yottanepers (YNp) |
10-27 Np |
0.000000000000000000000000001 Np |
Ronto (r) | Rontonepers (rNp) | 1027 Np |
1000000000000000000000000000 Np |
Ronna (R) | Ronnanepers (RNp) |
10-30 Np |
0.000000000000000000000000000001 Np |
Quecto (q) | Quectonepers (qNp) | 1030 Np |
1000000000000000000000000000000 Np |
Quetta (Q) | Quettanepers (QNp) |
Other Sound Level Unit Definitions
- Attobels (aB)
- Attonepers (aNp)
- Bels (B)
- Centibels (cB)
- Centinepers (cNp)
- Decabels (daB)
- Decanepers (daNp)
- Decibels (dB)
- Decinepers (dNp)
- Dekabels (daB)
- Dekanepers (daNp)
- Exabels (EB)
- Exanepers (ENp)
- Femtobels (fB)
- Femtonepers (fNp)
- Gigabels (GB)
- Giganepers (GNp)
- Hectobels (hB)
- Hectonepers (hNp)
- Kilobels (kB)
- Kilonepers (kNp)
- Megabels (MB)
- Meganepers (MNp)
- Microbels (µB)
- Micronepers (µNp)
- Millibels (mB)
- Millinepers (mNp)
- Nanobels (nB)
- Nanonepers (nNp)
- Nepers (Np)
- Petabels (PB)
- Petanepers (PNp)
- Picobels (pB)
- Piconepers (pNp)
- Quectobels (qB)
- Quectonepers (qNp)
- Quettabels (QB)
- Quettanepers (QNp)
- Ronnabels (RB)
- Ronnanepers (RNp)
- Rontobels (rB)
- Rontonepers (rNp)
- Terabels (TB)
- Teranepers (TNp)
- Yoctobels (yB)
- Yoctonepers (yNp)
- Yottabels (YB)
- Yottanepers (YNp)
- Zeptobels (zB)
- Zeptonepers (zNp)
- Zettabels (ZB)
- Zettanepers (ZNp)
Convert to Another Sound Level Unit
Related Definitions
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Sources
“Neper.” Wikipedia, Wikimedia Foundation, 3 Sept. 2023, en.wikipedia.org/wiki/Neper.