Percent Yield Calculator

Calculate percent yield, theoretical yield, or actual yield

Calculate Percent Yield
Calculate Actual Yield
Calculate Theoretical Yield
Formulas
Percent Yield Formula
% Yield = (Actual / Theoretical) × 100%
Rearranged Formulas
  • Actual Yield:
    Actual = (% Yield / 100) × Theoretical
  • Theoretical Yield:
    Theoretical = (Actual / % Yield) × 100
Typical Percent Yields
  • 90-100%: Excellent (simple reactions)
  • 70-90%: Good (most lab reactions)
  • 50-70%: Fair (complex reactions)
  • <50%: Poor (may need optimization)
Why Less Than 100%?
  • Incomplete reactions
  • Side reactions
  • Product losses during transfer
  • Impure reactants
  • Measurement errors
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Support This Free Tool

Every coffee helps keep the servers running. Every book sale funds the next tool I'm dreaming up. You're not just supporting a site — you're helping me build what developers actually need.

500K+ users
200+ tools
100% private
☕ One-time support Buy me a coffee 📚 Learn & support 9-Book Bundle - $9 Stay updated Follow @anish2good
Privacy Guarantee: Private keys you enter or generate are never stored on our servers. All tools are served over HTTPS.
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