The leather hide size calculator converts between square footage, square inches, and metric measurements for leather projects. Enter piece dimensions to find total square footage needed, then see how many hides or how many square feet of cut leather to order.
Leather Project Calculator
Add each piece you need to cut from leather
How to Calculate Leather Hide Size for Projects
Leather is sold by the hide (a full animal skin) or in cut pieces priced per square foot. The leather hide size calculator adds up all the pieces in your project, applies a waste factor for odd-shaped cuts, and tells you how much leather to buy.
Step 1: List all pieces in your project
Add each distinct piece you need to cut: the front and back panels of a bag, straps, gussets, card slots in a wallet. Enter width, height, and quantity for each. If a wallet needs 4 identical card slot pieces, enter the dimensions once and set quantity to 4.
Step 2: Choose the right waste factor
Leather hides have irregular edges and can have natural blemishes (scars, insect marks) that require you to work around them. Simple rectangular cuts from a clean pre-cut panel need 15% waste. If you're cutting curved pieces from a full hide with natural edges, 35–50% waste is realistic. Leather is expensive — buy slightly more than calculated rather than risk running short.
Step 3: Understand leather sizing
Full hides typically run 15–25 square feet. Half hides are 8–12 square feet. Belly and shoulder pieces are irregular. Most leather suppliers list their hides with a square footage range. Match the gross area from the calculator to the supplier's stock size. When buying cut leather (by the foot from a roll), the exact width and your gross square footage tells you how many linear feet to order.
Frequently Asked Questions
Is this leather hide calculator free?
Yes, completely free with no signup required. Get instant square footage estimates for any leather project.
Is my data safe and private?
Yes. All calculations run locally in your browser. No data is sent to any server.
How much leather do I need for a bifold wallet?
A standard bifold wallet requires approximately 1–1.5 square feet of leather. The main body pieces total about 0.6 sqft, plus card slots and interior lining add another 0.5 sqft. With a 25% waste/mistake factor, purchase at least 2 square feet for a first project, or 1.5 sqft if experienced.
How are leather hides sized and sold?
Full hides are typically 20–50+ square feet depending on the animal size. Sides (half hides) are 15–25 sqft. Pre-cut pieces are sold by square foot or by the piece. The calculator recommends small (5–10 sqft), medium (10–20 sqft), or large (20+ sqft) hide based on your project's requirements.
What is the difference between full grain, top grain, and genuine leather?
Full grain leather is the top layer of the hide with natural grain intact — the most durable and develops the best patina. Top grain has the top layer sanded/buffed for a more uniform appearance. Genuine leather is a lower quality layer (often splits) with a processed surface. For craft projects, full grain or top grain is always recommended.
How do I account for waste when buying leather?
Add 20–35% to your calculated area as a waste factor. Hides have natural imperfections (belly wrinkles, brand marks, insect holes) that must be avoided. First-time leather workers should add 35–40% for mistakes. Experienced workers can work with 15–20% extra. Pre-cut squares and sides from reputable sellers typically have less waste than raw full hides.