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Quetta (Q)

The SI prefix quetta (Q): a factor of 10³⁰, which is one nonillion (10³⁰).

What is a quetta unit?

Symbol
Q
Quantity
SI Prefixes
Unit system
SI
Definition
The SI prefix quetta (Q): a factor of 10³⁰, which is one nonillion (10³⁰).
Exact
Yes, the value is exact by definition
Source
SI Brochure, 9th edition (BIPM, 2019)

Common applications

The largest SI prefix, added in 2022. Jupiter has a mass of about 1.9 quettagrams (10³⁰ g), a number that is awkward without it.

Quetta in other si prefixes units

Quetta quick reference

Quetta in other units
QuettaKiloMilliRonna
1 Q= 1e+27 k= 1e+33 m= 1000 R
10 Q= 1e+28 k= 1e+34 m= 10000 R
100 Q= 1e+29 k= 1e+35 m= 100000 R
1000 Q= 1e+30 k= 1e+36 m= 1000000 R

Where the quetta unit fits

The next smaller si prefixes unit is the ronna unit (R). 1 Q = 1000 R, and 1 R = 0.001 Q.

Frequently asked questions

How many kilo units are in one quetta unit?
One quetta unit = 1e+27 k (kilo units).
How many milli units are in one quetta unit?
One quetta unit = 1e+33 m (milli units).
How many ronna units are in one quetta unit?
One quetta unit = 1000 R (ronna units).