Increase & Decrease Calculator

When Do I Need This?

• Hat crowns — evenly decrease to close the top of a beanie or beret
• Amigurumi — increase for spheres, decrease for shaping heads, bodies, and limbs
• Garment waists — decrease for a fitted waist, increase for hip flare
• Sleeve caps — shape the top of set-in sleeves with even decreases
• Skirts & ruffles — increase evenly for a smooth flare without bunching