
Unit Prefixes
Prefix Name
Exponent
Í yotta -f24
zetta
4-21
E exa
+ 18
F=
peta
+ 15
T
tera
+ 12
G
giga
+9
hi
mega
+6
k or l<
kilo
+3
h or H hecto
+2
Pi
deka
+ 1
Prefix
Name Exponent
U.J deci -1
c cent
-2
f'i milli
-3
.Ü
micro
-6
n nano
-9
p
pico
-12
f femto
-15
•d atto
-18
z zepto -21
yocto
-24
10
Most prefixes used by the HP 48 correspond with standard SI
notation, with one exception: “deka” is “D” in HP 48 notation and
“da” in SI notation.
Note
You cannot use a prefix with a built-in unit if the
resulting unit matches another built-in unit. For
example, you cannot use min to indicate milli-inches,
because min is a built-in unit indicating “minutes,”
Other combinations that match built-in units are F'-=i,
Converting Units
The HP 48 provides several w^ays to convert unit objects to different
units;
■ The UNITS Catalog menu—converts to built-in units only.
■ The CONVERT command—converts to any units.
■ The UBASE (base units) command—converts to SI base units only.
If you’re working with temperature units, see “Working with
Temperature Units” on page 10-10.
Unit Objects 10-5
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