Cataloging Calculator
The Cataloging Calculator is a call-number assembly aid for Library of Congress Classification (LCC) or Dewey Decimal Classification (DDC). You supply the class number. Optional Cutter, work mark, year, volume, and copy are normalized and combined into a compact or multi-line string. The tool does not determine subject classification, replace professional cataloging, or produce an official Library of Congress or Dewey call number.
How to Use the Cataloging Calculator
Build a compact call number or multi-line spine-label string from cataloging components you have already selected.
- Choose LCC or DDC. This labels the system; it does not classify the work.
- Enter the required classification number.
- Optionally enter a Cutter, a title for a derived work mark, year, volume, and copy. In LCC mode, you may enter a name and select Suggest LC Cutter.
- Choose compact or multi-line output, then select Build call number.
- Review the component breakdown and compare the result with your library’s shelflist and local policy before use.
Methodology, examples, and interpretation
The tool trims and normalizes supplied parts, omits empty optional fields, and joins the remaining components. Compact format uses spaces; multi-line format places components on separate lines. Bare volume and copy numbers are labeled as v. and c.
For example, QA76.73, .A26, and 2026 become QA76.73 .A26 2026. You can also prepare a multi-line spine-label draft or add volume and copy designations to an established class and book number.
The result is a formatting and assembly aid. Its correctness depends entirely on the class number, Cutter, dates, and local designations you provide.
Worked library cataloging capacity scenario example
- Collection backlog: 1,200 uncataloged monographs.
- Staffing: 2 full-time catalogers (35 hours/week each = 70 staff hours/week).
- Benchmark velocities: Copy cataloging = 4 titles/hour (70% of intake); Original cataloging = 1.2 titles/hour (30% of intake).
- Weighted average velocity: (0.7 × 4) + (0.3 × 1.2) = 2.8 + 0.36 = 3.16 titles/hour.
- Weekly production: 70 hours × 3.16 titles/hour ≈ 221 titles/week.
- Estimated backlog clearance time: 1,200 ÷ 221 ≈ 5.4 weeks.
Mistakes, limitations, and privacy
The calculator does not search a catalog, determine subjects, assign official LCC or DDC numbers, or replace local cataloging judgment. The calculation runs in your browser; avoid entering patron or other confidential data because none is needed.
- Do not confuse the subject classification with the Cutter book number.
- Do not enter a title or ISBN expecting the tool to determine the class.
- Check every suggested Cutter and assembled string against the shelflist.
- Do not use the LC Cutter suggestion for a Dewey Cutter-Sanborn workflow.
FAQ
Does the cataloging calculator assign a Dewey or LC class number?
No. You must supply the LCC or DDC classification number. The calculator only normalizes and assembles the call-number components you enter.
What is the difference between the classification number and the Cutter?
The classification number groups works by subject. The Cutter is a book number used to file a work within that class, usually from the main entry. They are separate components.
Can it suggest an LC Cutter?
Yes, in LCC mode you can enter a name and select Suggest LC Cutter. The suggestion uses the same first-pass G 63 module as the LC Cutter Table Calculator and still needs shelflist review.
Is the result an official catalog record?
No. It is an assembled call-number-style string, not an official Library of Congress, Dewey, or local cataloging decision.
What is a work mark?
This tool can derive an optional letter from the title, skipping the English articles a, an, and the, and append it to the Cutter. Work-mark practice varies by library.
Does this work for Dewey Decimal Classification?
It can assemble a DDC class number with optional Cutter, year, volume, and copy. It does not assign a DDC class or include Dewey Cutter-Sanborn tables.
How are volume and copy numbers formatted?
A bare volume number is normalized with a v. prefix and a bare copy number with a c. prefix. Review the output because local spine-label conventions may differ.
Does the calculator store catalog records?
The assembly runs in your browser and does not require a catalog-record upload. Use only the call-number components needed for the result and avoid confidential data.