How to Measure for the Right Wheelchair Size – A Complete Guide by Aracent Healthcare

Choosing the correct size and style of wheelchair is essential for comfort, mobility, and overall health. At Aracent Healthcare, we help you find a wheelchair that fits your body, lifestyle, and medical needs. Use this guide to understand how to measure for a standard or custom wheelchair.

Why Proper Wheelchair Sizing Matters

An incorrectly sized wheelchair can cause discomfort, posture issues, pressure sores, or even lead to long-term injuries. Proper sizing ensures:

  • Improved comfort and posture

  • Better mobility and independence

  • Reduced risk of injury or pressure points

  • Easier transport and maneuverability

Step-by-Step Wheelchair Measurement Guide

To select the correct wheelchair, you’ll need to measure several body areas. Always measure while seated in a natural, upright position. A friend, caregiver, or clinician can help ensure accuracy.

1. Seat Width

2. Seat Depth

How to Measure: Measure the widest point of the hips or thighs while seated

How to Measure: Measure from the back of the buttocks to the back of the knees

Ideal Fit: Add 1 to 2 inches for comfort and movement

Ideal Fit: Subtract 1 to 2 inches to avoid pressure behind the knees

Why It Matters: A seat that's too narrow causes pressure points, while too wide makes propulsion difficult

Why It Matters: A too short seat reduces thigh support while a too long seat may cause discomfort.

3. Seat Height (Seat to Floor)

4. Back Height

How to Measure: Measure from the heel to the back of the knee. Subtract seat cushion thickness if applicable

How to Measure: Measure from the seat to the top of the shoulders (or lower, depending on desired support level)

Ideal Fit: Adjust based on footrest usage - ensure feet rest comfortably on the ground or footplates

Ideal Fit: Higher backrests provide more support, while lower backrests allow greater mobility

Why It Matters: A too high seat makes transfers difficult, while a too low seat affects posture

Why It Matters: A too high backrest may restrict movement, while a too low backrest may lack support

5. Armrest Height

6. Footrest Length

How to Measure: Measure from the seat to the elbow while the arm is bent at 90°. Add seat cushion thickness if applicable

How to Measure: Measure from the back of the knee to the bottom of the heel while seated

Ideal Fit: Ensure arms rest comfortably without strain

Ideal Fit: Ensure the footrests allow feet to rest flat and supported, with slight bend at the knee

Why It Matters: A too high armrest causes shoulder tension, while a too low armrest leads to poor posture

Why It Matters: Too short - Knees raised, causing discomfort and poor circulation. Too long - Feet dangle, leading to instability and difficulty maneuvering
Click to download printer friendly wheelchair sizing guide

Additional Features to Consider

  • Cushions and Support: Consider seat/back cushions, lateral supports, or headrests for extra comfort.

  • Folding vs. Rigid Frames: Folding models are easier to transport; rigid frames offer better performance.

  • Wheel Types & Sizes: Choose based on indoor/outdoor use and ease of propulsion.

  • Brakes & Armrests: Swing-away, desk-length, or full-length armrests can improve accessibility.

  • Custom Modifications: For unique body shapes, weight distribution, or medical conditions.

Sizing for Pediatric or Bariatric Users

Speak to an Expert

Still unsure about your size or needs? Our product specialists are here to help. Contact us for assistance or to explore our wide selection of manual wheelchairs.

Aracent Healthcare – Your Trusted Source for Wheelchair Guidance and Support

Disclaimer: For medical advice and prescription wheelchair sizing, consult with a licensed healthcare provider.