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ResinBatch vs CalcSpan

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ResinBatch compared with CalcSpan
DetailResinBatch logo ResinBatchCalcSpan logo CalcSpan
What it doesFree epoxy resin calculator for mold batches, casting voids and tabletop coatings Date, deadline and time calculators with visible assumptions and sources
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFree Free
PricingNot given Not given
Key features
  • Calculate mold cavity volumes from dimensions or enter known volumes
  • Combine multiple molds and piece counts in a single batch plan
  • Split totals using product volume or weight ratios
  • Add material allowance percentages for wastage
  • Estimate kit quantities and material costs
  • Support metric and US imperial units
  • Save projects locally in browser without creating an account
  • Export batch sheets as PDF or CSV
  • Calculate deep pour epoxy with layer allocation
  • Calculate tabletop coatings with edge coverage
  • 184 calculators across 53 categories
  • Shows counting rules and assumptions with each result
  • Local-first processing with no data sent to servers
  • Holiday and weekend calendar selection
  • Business day counting
  • Date arithmetic (add or subtract days, weeks, months, years)
  • Sleep cycle planner with NIH-based 80-100 minute cycles
  • Time zone conversion with DST handling
  • Save results as images or add to calendar
  • Schengen visa 90/180 day rolling window auditing
What makes it different
  • Published formulas and methodology transparent with no proprietary hidden calculations
  • Calculations cross-checked against a separate Python implementation using 100-digit decimal arithmetic
  • Handles irregular molds using known volumes without forcing geometry estimates
  • Shares batch plans via URL without storing projects on servers
  • Shows the source and counting rule beside every answer
  • No sign-up or account required to use any calculator
  • All inputs stay in your browser for privacy
  • Comprehensive coverage across 53 life and work categories
  • Higher-risk calculators include prompts to verify with professionals
Community votes00
DR (Domain Rating by Ahrefs)1 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)190
Referring domains (Majestic)60

4 details filled in for both companies.

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