64 Math Tools
Constant Value used for calculations
mole
R
ideal gas constant 8.3144598 Joules per mole per
Kelvin
m
e
electron mass 9.10938356×10
M
31
kilograms
m
p
proton mass 1.672621898×10
M
27
kilograms
m
n
neutron mass 1.674927471×10
M
27
kilograms
m
µ
muon mass 1.883531594×10
M
28
kilograms
G
universal gravitation 6.67408×10
M
11
meters
3
per
kilogram per seconds
2
F
Faraday constant 96485.33289 Coulombs per mole
a
0
Bohr radius 5.2917721067×10
M
11
metres
r
e
classical electron radius 2.8179403227×10
M
15
metres
k
Boltzmann constant 1.38064852×10
M
23
Joules per
Kelvin
e
electron charge 1.6021766208×10
M
19
Coulombs
u
atomic mass unit 1.66053904×10
M
27
kilograms
atm
standard atmosphere 101325 Pascals
H0
permittivity of vacuum 8.85418781762×10
M
12
Farads per
metre
m0
permeability of vacuum 1.256637061436×10
M
6
Newtons
per ampere
2
Cc
Coulomb’s constant 8.987551787368×10
9
metres per
Farad
Conversions
The CONVERSIONS menu allows a total of 20 conversions (or 40 if converting both
ways). The conversion must be at the end of an expression. The value of the full
expression will be converted. A conversion can be stored to a variable.
To access the CONVERSIONS menu, press % . Press one of the numbers (1-5)
to select, or press # and $ to scroll through and select one of the CONVERSIONS sub-
menus. The sub-menus include the categories English-Metric, Temperature, Speed and
Length, Pressure, Power and Energy.
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