• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Shop
  • Pattern Tailor
  • substack
  • Techniques
  • Contact
  • My Account
  • Cart

Jill Wolcott Knits logo

Calculators: Output Sheets & User Guides

Calculators require data! Calculator Output sheets allow you, the knitter or designer, to corral all the information you need for the Pattern Tailor to perform its calculations in one place. After you give your specific data to the Pattern Tailor each calculator will process that data and give you an Output Sheet with your data, and answers.

Jill Wolcott Knits + Pattern Tailor logo

There are all kinds of things that can help our knitting that require bits of calculations and data gathering. The Pattern Tailor Calculators work best if you gather the needed information first. For each Calculator, download the Output Sheet in blank form (they are fillable forms so you can type the data in if you like) and the User Guide for guidance.

Some of the questions require fractional measurements. Here are tables you can use.

Calculators

Links

FLTCO – Flexible long-tail cast on

FLTCO Output Sheet
FLTCO User Guide

LTCO – Long-tail cast on

LTCO Output Sheet
LTCO User Guide

T2K – Time to Knit

T2K Output Sheet
T2K User Guide

YRF – Yarn Remainder Finder

YRF Output Sheet
YRF User Guide

Needle Conversion Table for Calculators

To insure that everyone is inputting needle sizes consistently, here is a table (also in the user guides) of the needle sizes acceptable in US and metric (mm) sizes.

FLTCO: Needle Conversion Chart US Metric (mm) 0 2 1 2.25 1.5 2.5 2 2.75 2.5 3 3 3.25 4 3.5 5 3.75 6 4 7 4.5 8 5 US Metric (mm) 9 5.5 10 6 10.5 6.5 10.75 7 10.875 7.5 11 8 13 9 15 10 17 12.5 19 15

Primary Sidebar

Jill’s Story

Teacher, Designer, with expertise to lead you where you want to go as a knitter/designer. Read More…

subscribe to my substack

Reference

  • Sizing Chart
  • Pattern Levels

Learn with Jill

  • Why I Love . . . Techniques
  • What Is An Action Chart?
  • Sleeve Length Calculator
  • Seed Stitch Bobbles & Leaves Charts
  • May 2017 Swatch Workshop Secret Page
  • Adding Embellishments Download & Video
  • Secret Plant Fiber Workshop Page
  • Month of Color of the Day by Jill
  • Subscribe to B2B Newsletter
  • Medallion Larger Graphics Download
  • Almost Plaid Yardage & Cast On Calculator
  • LYS Love Sample Patterns Available for Download
  • LYS Love: Sample Pattern Downloads
  • Love LYS Shop Samples Available!
  • Love LYS Sample Pattern Downloads
  • Ashland Large Version Action Charts, Keys, Drawings
  • Belon & Narrow Belon Larger Charts Download
  • Special Offers on New Releases!
  • YNotKnit: Table of Contents
  • J-Squared Knitwear Design Intensive
  • Ormt Worsted Cowl LYS Day Kit
  • Japanese Knitting Stitch Lace-1
  • Introduction Videos, Jill Wolcott Knits
  • Knitwear Design Intensive Schedule
  • Yarnover 2022 Yoke Sweater Construction for Real Bodies Homework
  • Naples Test Knit
  • Naples Test Knit in 6 Variations
  • What You Want to Know: J-Squared Design Intensive
  • Knitter’s Math Answer (s) for Giveaway
  • Memphis Rib Trim PU Calculator (3 types of rib)
  • Phoenix is Rise Up Collection Design 7
  • Cart
  • Designer’s Story
  • About Jill Wolcott & Jill Wolcott Knits
  • Shop
  • Fundraising Projects
  • Contact
  • Abbreviations
  • Privacy Policy
  • Techniques Library : How to Find a Technique
  • Sizing Tables / Charts / Guidelines & Croquis
  • Inside a Jill Wolcott Knits Pattern
  • Patterns
  • Knit.Design.Edit.Sleep.Repeat.
  • Sizing [R]Evolution
  • ASOG 2022 (A System of Grading) Kicks Off
  • A Perfect Dress
  • Using a Bust Dart Calculator
  • Style Formatting and How to Read Text
  • Buttons Links Are a Practical Closure with Panache, Perfect for Knits
  • Horizontal Bust Dart Pullover Pullover: User Guide
  • User Guide: Lyon Traboules Questions
  • The Fabulous Pattern Tailor
  • Description for Horizontal Bust Dart Calculator
  • How the Pattern Tailor Works
  • User Guide: Path to Maiori Questions
  • PATTERN TAILOR: Release Trio Visuals
  • Lyon Traboules User Guide
  • Looking for Measurement Fillable Forms?
  • Peete, the Pattern Tailor:
  • Berkshires Cowl: Power Tools You Need to Make a Fantastic Cowl
  • Photos of Berkshires Cowl in Malabrigo
  • Videos for Using the Pattern Tailor
  • User Guide for Berkshires Cowl
  • FLTCO User Guide (Flexible Long-tail Cast On)
  • User Guide for LTCO (Long-Tail Cast On) Calculator
  • YRF User Guide (Yarn Remainder Finder)
  • Calculators: Output Sheets & User Guides
  • Time to Knit User Guide (T2K)
  • Measuring Worksheet
  • A potpourri of knitting techniques
  • Porto Pre-Pattern Documents
  • Napoli Pre-Pattern Documents
  • BO Calculator User Guide
  • JSSBO Calculator User Guide
  • Knitters’ Math: KM Documents
  • Arno Shawl
  • Langley Photos
  • Proportion & Volume
  • Selfish Knitting
  • User Guide for Attached & Apart: Chios Cowl
  • Join Me for A Fit Trip; Everything to Know About Route 66
  • Ease Article: 4/9/2026 Downloads
  • What You Need To Know About Gauge
  • Fit Goals: What Does “garments that fit” mean?

Join Jill on Craftsy

Join Jill on Craftsy

Join Jill on Craftsy. Create Beautiful, New Patterns from the Basics You Know!

Blog Archives

Follow Jill Wolcott Knits

Footer

About Jill

Teacher, Designer, with expertise to lead you where you want to go as a knitter/designer.

Newsletter: Inside Scoop!

Subscribe

Pattern Availability

If you live outside of the US and Canada you can now purchase Jill Wolcott Knits PDF patterns directly through Payhip.

Stay Connected

  • Facebook
  • Instagram
  • LinkedIn
  • Pinterest
  • Ravelry

© 2026 Jill Wolcott Knits