The official Truform Anti-Embolism Stockings 18 mmHg Size Chart, covering knee high and thigh high styles. Toggle inches/cm and tap any measurement to highlight your size — sizing data comes directly from Truform's published charts.
Tap any measurement below to see your full size details.
Do not base your size on your shoe size. Medical compression garments require precise ankle and calf measurements to work correctly. Please use your exact measurements on the chart below to find your perfect fit.
👆 Tap a value in the table to highlight your size.
Measurements
Measure
Small
Medium
Large
X-Large
2X-Large
3X-Large
Ankle (circumference)
Calf (circumference)
Thigh (circumference)
Length to knee
Length to thigh
Small
Ankle (circumference)7" - 8¼"
Calf (circumference)11" - 14"
Thigh (circumference)up to 21"
Length to kneeup to 15"
Length to thighup to 28"
Medium
Ankle (circumference)8⅜" - 9⅝"
Calf (circumference)13½" - 16"
Thigh (circumference)up to 22"
Length to kneeup to 16"
Length to thighup to 29"
Large
Ankle (circumference)9¾" - 11"
Calf (circumference)15½" - 18"
Thigh (circumference)up to 24"
Length to kneeup to 17"
Length to thighup to 30"
X-Large
Ankle (circumference)11⅛" - 12⅜"
Calf (circumference)17½" - 20"
Thigh (circumference)up to 26"
Length to kneeup to 18"
Length to thighup to 32"
2X-Large
Ankle (circumference)12½" - 13¾"
Calf (circumference)19½" - 22"
Thigh (circumference)N/A
Length to kneeup to 18"
Length to thighN/A
3X-Large
Ankle (circumference)12½" - 13¾"
Calf (circumference)21½" - 24"
Thigh (circumference)N/A
Length to kneeup to 18"
Length to thighN/A
Short sizes for knee to floor length of 15″ or less.
2X-Large and 3X-Large share the same ankle range and are differentiated by calf measurement.
Need help choosing your size?
Our Certified Fitters are standing by. Mon–Fri 8am–7pm CST
Between sizes? Size down for a firmer therapeutic fit, or up for easier donning. It should feel snug — like a firm, even hug.
Wrong size? No problem. Easy exchanges — we’ll get you into the right fit.
Measure first thing in the morning, before swelling, with a soft tape measure held level. Applies to: Knee High & Thigh High.Step-by-step Measuring Guide →