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Calculators
PhysiologyWeb is committed to providing useful calculators that simplify and help with common everyday tasks. Our goal is to provide calculators that are simple to use, yet are scientifically and mathematically accurate. Below is a short list of our calculators. Many more calculators are under development. If you have any questions or comments about one or more calculators, or if you have suggestions for new calculators to be developed, please contact us . We would love to hear from you.
Physiology Calculators
Biochemistry Calculators
Calculators Related to Units, Numbers, and Significant Figures
Calculators Related to Money, Investments, and Financial Literacy
Date Calculators
Calculators for Preparing Physiological and Biochemical Solutions
Sooner or later, a student or teacher of physiology is faced with the task of preparing solutions for teaching and/or research. The calculators below simplify and facilitate this task. These calculators are not useful just for physiology students and practitioners. They are also useful for preparing solutions in other fields such as neuroscience, chemistry, biochemistry, molecular biology, cell biology, microbiology, and many others.
Starting with the solid material
Molar Solution Concentration Calculator (Molarity)
Percent Solution Concentration Calculator (w/v %, w/w %, and w/v %) (note)
Normal Solution Concentration Calculator (Normality)
Molal Solution Concentration Calculator (Molality)
Mass per Volume Solution Concentration Calculator (e.g., pg/mL, μg/μL, mg/mL, g/L, etc.)
Units per Volume Solution Concentration Calculator (e.g., Units/mL)
Parts per Trillion (ppt), Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppth), Parts per Hundred (pph, %) Concentration Calculator - Mass/Mass Fraction
Parts per Trillion (ppt), Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppth), Parts per Hundred (pph, %) Concentration Calculator - Mass/Volume Fraction
Parts per Trillion (ppt), Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppth), Parts per Hundred (pph, %) Concentration Calculator - Volume/Mass Fraction
Parts per Trillion (ppt), Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppth), Parts per Hundred (pph, %) Concentration Calculator - Volume/Volume Fraction
Dilution calculators for solutions
Dilution Calculator - Molarity, Percent (%)
Dilution Calculator - Normality
Dilution Calculator - Molality
Dilution Calculator - Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppt), Parts per Hundred (pph, %)
Dilution Calculator - Mass per Volume (e.g., pg/mL, μg/μL, mg/mL, g/L, etc.)
Dilution Calculator - Units per Volume (e.g., Units/mL)
Dilution Calculator - Cells per Volume (e.g., 106 cells/mL)
Dilution factor calculators for solutions (fold dilution calculators)
Dilution Factor Calculator - No Unit
Dilution Factor Calculator - Molarity, Percent (%)
Dilution Factor Calculator - Normality
Dilution Factor Calculator - Molality
Dilution Factor Calculator - Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppt), Parts per Hundred (pph, %)
Dilution Factor Calculator - Mass per Volume (e.g., pg/mL, μg/μL, mg/mL, g/L, etc.)
Dilution Factor Calculator - Units per Volume (e.g., Units/mL, etc.)
Dilution Factor Calculator - Cells per Volume (e.g., 106 cells/mL, etc.)
Solution mixtures calculators (for mixing two solutions)
Solution Mixtures Calculator - Molarity, Percent (%)
Solution Mixtures Calculator - Normality
Solution Mixtures Calculator - Molality
Solution Mixtures Calculator - Parts per Billion (ppb), Parts per Million (ppm), Parts per Thousand (ppt), Parts per Hundred (pph, %)
Solution Mixtures Calculator - Mass per Volume (e.g., pg/mL, μg/μL, mg/mL, g/L, etc.)
Solution Mixtures Calculator - Units per Volume (e.g., Units/mL, etc.)
Solution Mixtures Calculator - Cells per Volume (e.g., 106 cells/mL)
Posted: Tuesday, December 20, 2005 Last updated: Wednesday, March 26, 2025