| No | Simbol | Ketentuan | Rumus Perhitungan |
| 1 | M | Modul ( modul pisau) | M = D / Z |
| 2 | Z | Jumlah Gigi | Z = D / M |
| 3 | D | Diameter Pitch | D = Z . M |
| 4 | Da | Diameter Luar | Da = D + 2.M Da = (Z + 2)M |
| 5 | Df | Diameter Kaki | Df = D + 2,32.M Df = (Z + 2,32)M |
| 6 | A | Adendum | Ha = 1.M |
| 7 | Hf | Defendum | Hf = 1,16.M |
| 8 | H | Kedalaman alur gigi/Tinggi gigi | H = 2,16.M |
| 9 | T | Lebar Gigi | T = π.M |
| 10 | B | Jarak Pitch | B = 10.M |
| 11 | Zv | Nomor Cutter Modul yang dipilih | LIHAT TABEL |
| 12 | Nc | Jarak Poros Roda Gigi Berpasangan | Nc = I / Z I = 40 : 1 |
| 13 | Ha | Putaran Tuas Kepala Pembagi | A= D1+D2 /Z= (Z1+Z2)M /Z |
Standard Internasional Roda gigi sistem Modul dan Sistem Diametral Pitch
Standar Roda gigi diklasifikasikan atas 2 macam :
1. Standar Modul (M)
2. Standar Diametral Pitch (DP)
