FR to US clothing size

The short answer

By the formula, FR 44 is US 12. On brand charts the most common answer is 10 (1 of 2 brands), and 2 different answers are in print.

The formula and the brands' most common answer differ on 3 of 11 sizes below. Use the brand's own number for the brand you are buying.

FR to US. The formula column is arithmetic; the brand columns are read from 3 brand charts checked by hand.
FR	US by formula	Most brands print	Other answers in print
32	0	not published	not published
34	2	2 (2 of 3)	0: Reiss
36	4	4 (2 of 3)	2: Reiss
38	6	6 (2 of 3)	4: Reiss
40	8	8 (2 of 3)	6: Reiss
42	10	10 (2 of 3)	8: Reiss
44	12	10 (1 of 2)	12: J.Crew
46	14	12 (1 of 2)	14: J.Crew
48	16	14 (1 of 2)	16: J.Crew
50	18	not published	not published
52	20	not published	not published

Tinted rows: the formula differs from the brands' most common answer. A brand is counted once per answer.

The widest split is at FR 34: brand charts print anything from US 0 to 2 for the same size.