How to Calculate Tie Dye Supplies
Whether you are dyeing a batch of shirts for a craft fair, a summer camp activity, or an Etsy shop, knowing exactly how much dye and soda ash to buy prevents waste and keeps your cost per shirt predictable.
Understanding Dye Coverage
Fiber-reactive dyes like Procion MX are the gold standard for tie dye because they bond permanently with cotton and rayon fibers. A single 2/3 oz bottle of concentrated dye typically covers 5 adult-sized t-shirts for one color. Multi-color designs multiply your bottle count by the number of colors you plan to use.
Why Soda Ash Matters
Soda ash (sodium carbonate) is the fixer that raises fabric pH so fiber-reactive dye can bond to cotton. Without it, colors wash out almost entirely. Pre-soaking shirts in a soda ash solution for 15-20 minutes before applying dye gives the brightest, most permanent results. One tablespoon per gallon of warm water is the standard ratio.
Keeping Costs Low on Large Batches
Buying dye powder in bulk jars instead of pre-mixed squeeze bottles can cut your dye cost by 50% or more on orders of 20+ shirts. Similarly, soda ash purchased in 5 lb bags is dramatically cheaper per shirt than small 1 lb packages. Factor in rubber bands, squeeze bottles, and gloves as reusable supplies that spread their cost across many batches.
Pro Tip: Always dye more shirts than you need for an order. Tie dye is inherently unpredictable, and having 10-15% extra blanks lets you pick the best results and account for any that do not turn out as planned.
Ready to sell your tie dye creations? Use our Etsy Profit Calculator to factor in marketplace fees and set prices that protect your margins.
Frequently Asked Questions
How much dye do I need per shirt for tie dye?▼
For fiber-reactive dyes like Procion MX, a standard 2/3 oz bottle dyes about 5 adult-sized t-shirts per color. If you are using 4 colors on 10 shirts, you will need approximately 2 bottles of each color, or 8 bottles total. Heavier items like hoodies use roughly twice as much dye as a standard tee.
How much soda ash do I need for tie dye?▼
Use about 1 tablespoon of soda ash per gallon of warm water for soaking. Each adult shirt needs roughly 1 tablespoon worth of soda ash soak. One pound of soda ash contains about 48 tablespoons, so a single pound is enough for approximately 48 shirts. For large batches, buy soda ash in bulk to save significantly.
What supplies do I need besides dye for tie dye?▼
Beyond dye and soda ash (the fixer), you will need squeeze bottles for applying dye, rubber bands or sinew for tying patterns, plastic wrap or bags for curing, rubber gloves, and a wire rack or plastic grid for dyeing over. Budget about $1-2 per shirt in consumable supplies on top of the dye and soda ash cost.