The basic values that you need to know for mixing by weight are below.
DiluentWeight of PG: 1.038 grams per ml
Weight of VG: 1.26 grams per ml
Nicotine Weights
Weight of Pure Nicotine: 1.01 grams per ml
Weight of 100mg in PG: 1.035 grams per ml
Weight of 60mg in PG: 1.03632 grams per ml
Weight of 50mg in PG: 1.0366 grams per ml
Weight of 48mg in PG: 1.036656 grams per ml
Weight of 36mg in PG: 1.036992 grams per ml
Weight of 24mg in PG: 1.037328 grams per ml
Weight of 100mg in VG: 1.235 grams per ml
Weight of 60mg in VG: 1.245 grams per ml
Weight of 50mg in VG: 1.2475 grams per ml
Weight of 48mg in VG: 1.248 grams per ml
Weight of 36mg in VG: 1.251 grams per ml
Weight of 24mg in VG: 1.254 grams per ml