UK to FR clothing size

The short answer

By the formula, UK 14 is FR 42. On brand charts the most common answer is 42 (2 of 3 brands), and 2 different answers are in print.

The formula and the brands' most common answer agree on every size below. Use the brand's own number for the brand you are buying.

UK to FR. The formula column is arithmetic; the brand columns are read from 3 brand charts checked by hand.
UK	FR by formula	Most brands print	Other answers in print
4	32	32 (1 of 2)	34: Reiss
6	34	34 (2 of 3)	36: Reiss
8	36	36 (2 of 3)	38: Reiss
10	38	38 (2 of 3)	40: Reiss
12	40	40 (2 of 3)	42: Reiss
14	42	42 (2 of 3)	44: Reiss
16	44	44 (1 of 2)	46: Reiss
18	46	46 (1 of 2)	48: Reiss
20	48	not published	not published
22	50	not published	not published
24	52	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 UK 4: brand charts print anything from FR 32 to 34 for the same size.