Spinning
Planning calculators for spinning — estimates from industry-style inputs.
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Twist Per Inch Calculator
TPI from fiber type and desired yarn characteristics.
simple
Drafting Ratio Calculator
Draw ratio from fiber diameter and target yarn count.
simple
Fiber-to-Yarn Yield Calculator
Finished yarn yardage from raw fiber weight.
simple
Plying Calculator
Singles twist and plying twist for balanced yarn.
simple
Fiber Blend Ratio Calculator
Blending percentages for target yarn properties.
simple
Spindle Speed Calculator
Optimal whorl size from target twist and drafting speed.
simple
Roving Weight Calculator
Ounces of roving needed for target yardage.
simple
Fleece Yield Calculator
Clean fiber weight from raw fleece weight and waste.
simple
Yarn Wraps Per Inch Calculator
WPI measurement and yarn weight classification.
simple
Spinning Wheel Ratio Calculator
Drive ratio from whorl and drive wheel diameters.
simple