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InstantCalcs vs RoasFloor

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

InstantCalcs compared with RoasFloor
DetailInstantCalcs logo InstantCalcsRoasFloor logo RoasFloor
What it doesFree online calculators for math, finance, health, pregnancy, and more Break-even ROAS calculator with tariff-aware landed cost for ecommerce
StageNot given Not given
FoundedNot given Not given
Based inNot given HK
Pricing modelFree Not given
PricingNot given Free: all eleven calculators unlimited, no account required. Pro: $19 per month or $190 per year (two months free).
Key features
  • BMI calculator for health assessment
  • Ovulation and pregnancy tracking calculators
  • Percentage and fraction calculations
  • Loan and mortgage financial calculators
  • Construction calculators for measurements
  • Unit conversion tools
  • FFMI and body composition analysis
  • Instant results with no processing delays
  • Tariff-aware break-even ROAS calculation including 2026 US import duties
  • Scenario modeling for price and tariff rate changes
  • Tariff alerts when policy rates change
  • CSV export of SKU profiles
What makes it different
  • Completely free with no signup or registration required
  • Privacy-focused with local browser processing
  • Accurate calculations based on industry-standard formulas
  • 73 calculators across multiple categories
  • Clean and intuitive user interface
  • Free tool with no signup required; all calculators stay free forever
  • Tariff calculations verified and dated; rates sourced from official sources with HTS code accuracy
  • Accounts for all hidden costs that platform ROAS does not include
  • Flat monthly pricing with no per-order fees that scale with revenue
  • Formulas fully transparent and printed in full; no proprietary model withheld
Community votes00
DR (Domain Rating by Ahrefs)15 +3 (up) since last check1 no change since last check
Trust Flow (Majestic)12
Citation Flow (Majestic)1324
Referring domains (Majestic)19

3 details filled in for both companies.

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