Hold measuring tape horizontaly across the widest part of your nail.
Coffin- Sculpted Long; number/mm:0-18; 1-17; 2-16; 3-15; 4-14; 5-13; 6-12; 7-11; 8-10; 9-9
XS- 3, 6, 5, 7, 8
S- 2, 5, 4, 6, 7
M- 1, 5, 4, 6, 7
L- 0, 4, 3, 5, 6
 
Long Stiletto; number/mm:0-18; 1-17; 2-16; 3-14,4; 4-14; 5-13,5; 6-12,5; 7-11,5; 8-11; 9-10
XS- 3, 6, 5, 7, 9
S- 2, 5, 4, 6, 8
M- 1, 5, 4, 6, 7
L- 0, 4, 3, 5, 7
 
Medium Stiletto; number/mm:0-18; 1-17; 2-16; 3-15; 4-14; 5-13; 6-12; 7-11,5; 8-11; 9-10
XS- 3, 6, 5, 7, 9
S- 2, 5, 4, 6, 8
M- 1, 5, 4, 6, 7
L- 0, 4, 3, 5, 7
 
Long Coffin; number/mm:0-19; 1-17,5; 2-16; 3-15; 4-14,5; 5-14; 6-13; 7-12; 8-11; 9-10
XS- 3, 7, 6, 8, 9
S- 2, 6, 5, 7, 8
M- 1, 6, 5, 7, 8
L- 0, 5, 4, 6, 7
 
Medium Coffin; number/mm:0-19; 1-18; 2-17; 3-16; 4-15; 5-14; 6-13; 7-12; 8-11; 9-10
XS- 4, 7, 6, 8, 9
S- 3, 6, 4, 5, 8
M- 2, 6, 4, 5, 8
L- 1, 5, 3, 4, 7
 
Long Oval; number/mm:0-17; 1-16; 2-15; 3-14; 4-13; 5-12,5; 6-12; 7-11, 8-10; 9-9 XS- 2, 6, 4, 7, 8
S- 1, 4, 3, 6, 7
M- 0, 4, 3, 6, 7
L- 0, 3, 2, 4, 6  
Sculpted Stiletto: number/mm:0-17, 1-16, 2-15, 3-14, 4-13, 5-12, 6-11, 7-10, 8-9, 9-8
XS-2, 5, 4, 6, 7;
S-1, 4, 3, 5, 6;
M-0, 4, 3, 5, 6;
L-0 ,3 ,2 ,4 ,5. 
Medium Almond; number/mm; 0-18, 1-17, 2-15, 3-14, 4-13, 5- 12.5, 6-12, 7-11.5, 8-10, 9-9.
XS-2, 6, 4, 7, 9
S-1, 4, 3, 6, 8
M-1, 4, 3, 5, 7
L-0, 3, 2, 4, 7
 
Set of 10.