Calculators for records work
Small tools for the questions that come up at the scanner, in the vault and over an old deed: what resolution to use, how much storage a project needs, how many boxes a shelf holds, what a rod or a chain measures.
Scan resolution
Scan resolution calculator: turn dpi into pixels and megapixels, estimate uncompressed TIFF size, find the dpi a print needs and plan drive space for a project.
Dew point calculator
Dew point calculator for records rooms: enter temperature and relative humidity to get the dew point and how damp the air turns against a cold wall or floor.
Survey units
Convert rods, poles, perches, chains, links, furlongs, varas and acres into feet, meters and square feet, with notes on how each unit shows up in old deeds.
How long to keep
How long to keep tax returns, tax records, bank and credit card statements and pay stubs, with keep-until dates from IRS guidance. General information only.
Old Style dates
Convert Julian (Old Style) dates to Gregorian (New Style) and back, see the gap in days, and read double dates like 1731/32 in colonial and church records.
Records boxes
Turn linear feet of letter or legal files into standard record storage cartons, cubic feet, shelves and shelving units for a move, a purge or a records room.