| 1 | Foirmle um Shreangán Cóipeála Cuan agus Foirmle Comhshó Fad | L/kg | L1 = 143m/(d*d) |
| 2 | Foirmle Comhshó Sreang dronuilleogach agus Foirmle Comhshó Fad | G/L. | Z = (t*w-0.2146*2)*8900*1000/1000000 |
| 3 | Achar trasghearrthach de shreang dhronuilleogach | mm2 | S = T*W-0.2146*T2 |
| 4 | Foirmle Comhshó Sreinge Litz agus Comhshó Fad | L/kg | L2 = 274 / (d*d*2*snáitheanna) |
| 5 | Friotaíocht na sreinge dronuilleogach | Ω/L | R = r*l1/s |
| 6 | Foirmle 1: Friotaíocht Sreang Litz | Ω/L | R20 = RT × α × 103/L3 |
| 7 | Foirmle 2: Friotaíocht Sreang Litz | Ω/L | R2 (ω/km) ≦ r × 1.03 ÷ s × ag × 1000 |
