Measurement unit symbols, unit symbols, chemical symbols and element symbols

Greek letters\nuppercase
lower case
Pronunciation
General purpose\nA
α
alpha
Angle, coefficient\nB
β
Beta
Angle, coefficient\nΓ
γ
gamma
Angle, weight per unit area, (capital) relationship\nΔ
δ
delta
Small changes, density, displacement\nE
ε
Epsilon
Micro amount, strain\nZ
ζ
Zeta
Variable\nH
n
Aita
Variable\nΘ
θ
west tower
Angle, temperature, time\nI
ι
Jota
\nK
κ
Kepa
Radius of rotation\nΛ
λ
lambda
Wavelength, intrinsic value\nM
μ
Miu
Friction coefficient 10−6 (micro)\nN
ν
New
Vibration number\n
Notes, especially letters other than (uppercase) letters, are lowercase. \nUppercase
lower case
Pronunciation
General purpose\nΞ
ξ
Kersey
Variable\nΟ
ο
Omicron
\nΠ
π
group
Pi (3.14159…), angle, (capital) symbol of product\nΡ
ρ
soft
Radius, density\nΣ
σ
Sigma
Sum of stress, standard deviation, (capital) numbers\nT
τ
set
Time constant, time, torque\nY
υ
Upsilon
\nΦ
φ
Fiji
Angle, function, diameter\nX
χ
happiness
\nΨ
ψ
Pusey
Angle, relationship\nΩ
ω
Omega
Angular velocity = 2πf (uppercase) ohm = resistance unit\n
Names and symbols of elements\nRemarks: This table is based on Annex A (names and symbols of elements) of ISO 31/8-1980 (Quantities and units in physical chemistry and molecular physics) and ISO 31/9-1980 (Atomic Physics) Quantities and units in nuclear physics and nuclear physics) Annex C (Names and symbols of radionuclides).