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firenum™ vs Square Footage Calculator

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

firenum™ compared with Square Footage Calculator
Detailfirenum™ logo firenum™Square Footage Calculator logo Square Footage Calculator
What it doesFree FIRE financial planner with Monte Carlo simulation and historical backtesting Measure rooms and plan DIY flooring projects with feet, inches and metric units
StageEstablished Not given
Founded2019 Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • Monte Carlo simulation with up to 5,000 runs
  • Historical backtesting against every market period since 1872
  • US federal, state and payroll tax calculations for all 50 states
  • Roth conversion ladder and RMD planning
  • Six stress tests including market crash and job loss
  • Three withdrawal strategies with 59.5 rule enforcement
  • Support for 9 asset types with individual growth rates
  • Month-by-month income and expense modeling with custom timelines
  • Life event planning
  • 9-currency support with auto-detection
  • Calculate area in feet, inches, decimal feet, meters and centimeters
  • Support for rectangular, L-shaped, circular and triangular rooms
  • Add up to 20 rooms together
  • Automatic unit conversion between feet, inches and metric
  • Flooring calculator for waste allowance and whole-box rounding
  • Handles closets, alcoves and cutouts
  • View formulas and assumptions
  • No account required
  • Fractional inches support
What makes it different
  • Runs entirely in your browser with no account needed or data stored on servers
  • Tests retirement against 154 years of historical market data since 1872
  • Calculates exact tax liability for all 50 US states plus federal and payroll taxes
  • Completely private with no data collection, selling or sharing
  • Works offline on Android with full planner functionality
  • Correctly handles feet and inches together without requiring manual conversion
  • Includes measuring diagram for L-shaped rooms
  • Explains the difference between measured area, waste allowance and whole-box rounding
  • Calculations stay private in your browser with no account needed
Community votes00
DR (Domain Rating by Ahrefs)12 no change since last check14 no change since last check
Trust Flow (Majestic)47
Citation Flow (Majestic)3416
Referring domains (Majestic)12723

4 details filled in for both companies.

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