| Elementary constants for all calculations: |
| h = 6.62607015 × 10−34 Js |
| e = 1.602176634 × 10−19 AS |
| ε0 = 8.8541878128 (13) × 10−12 (As)/(Vm) |
| µ0 = 1.25663706212 (19) × 10−6 (Vs)/(Am) |
| Useful constants—for easy handling, not necessary for calculation: |
| c = 299,792,458 m/s |
| α = 7.2973525693 (11) × 10−3 |
| ħ = 1.054571818 ×10−34 Js |
| Z0 = 376.730313668 (57) V/A |
| Origin: CODATA [28] —from 22/11/2019 |
| Geometric necessary: |
| π = 3.14159265358979323846264338327950288 |