The Truform Classic Medical 15-20 mmHg Size Chart for knee highs. Toggle inches/cm and tap your ankle or calf measurement to highlight the matching size — straight from Truform's published sizing data.
Truform Classic Medical 15-20 mmHg Size Chart
Knee High
Tap any measurement below to see your full size details.
👆 Tap a value in the table to highlight your size.
Circumference
| Measure | Small | Medium | Large | X-Large |
|---|---|---|---|---|
| ankle | ||||
| calf |
Small
ankle
7" - 8¼"
calf
11" - 14"
Medium
ankle
8⅜" - 9⅝"
calf
13½" - 16"
Large
ankle
9¾" - 11"
calf
15½" - 18"
X-Large
ankle
11⅛" - 12⅜"
calf
17½" - 20"
Need help choosing your size?
Our Certified Fitters are standing by. Mon–Fri 8am–7pm CST
📞 1-800-504-7315
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 — 15-20 mmHg. Step-by-step Measuring Guide →
