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.
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.
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 →
