--- title: "Biology Calculators | XTRAW Tools" description: "Biology calculators for protein molecular weight, GC content, DNA reverse complement, DNA melting temperature, genetics, enzyme activity, microscopy, and cell concentration." url: "https://xtraw.com/tools/calculators/science-calculators/biology-calculators/dirDesc" date: "2026-08-21T15:19:33+00:00" language: "en-GB" --- ## [ Biochemistry Calculators ![Biochemistry Calculators category image](https://xtraw.com/images/virtuemart/category/251_biochemistry-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/biochemistry-calculators "Biochemistry Calculators") ## [ Genetics Calculators ![Genetics Calculators category image](https://xtraw.com/images/virtuemart/category/250_genetics-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/genetics-calculators "Genetics Calculators") ## [ Growth Model Calculators ![Growth Model Calculators category image](https://xtraw.com/images/virtuemart/category/246_growth-model-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/growth-model-calculators "Growth Model Calculators") ## [ Microbiology Calculators ![Microbiology Calculators category image](https://xtraw.com/images/virtuemart/category/247_microbiology-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/microbiology-calculators "Microbiology Calculators") ## [ Microscopy Calculators ![Microscopy Calculators category image](https://xtraw.com/images/virtuemart/category/252_microscopy-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/microscopy-calculators "Microscopy Calculators") ## [ Molecular Biology Calculators ![Molecular Biology Calculators category image](https://xtraw.com/images/virtuemart/category/249_molecular-biology-calculators.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/molecular-biology-calculators "Molecular Biology Calculators") Sort by [Sorted Product Name -/+](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/dirDesc "-/+") [Product Name](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/by,product_name/dirDesc "Product Name") [Ordering](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/by,ordering/dirDesc "Ordering") Results 1 - 15 of 15 24 # Biology Calculators #### Latest Tools [ ![Cell Concentration Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-cell-concentration-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/cell-concentration-calculator "Cell Concentration Calculator") new ## [Cell Concentration Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2409&virtuemart_category_id=244&Itemid=173) Calculate cell concentration from hemocytometer counts. Use ... Be the first to review product [ ![Microscope Magnification Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-microscope-magnification-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/microscope-magnification-calculator "Microscope Magnification Calculator") new ## [Microscope Magnification Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2408&virtuemart_category_id=244&Itemid=173) Calculate total magnification, field of view, and actual ... Be the first to review product [ ![Specific Activity Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-specific-activity-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/specific-activity-calculator "Specific Activity Calculator") new ## [Specific Activity Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2407&virtuemart_category_id=244&Itemid=173) Calculate specific activity of an enzyme from total ... Be the first to review product #### Products [ ![RNA Molecular Weight Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-rna-molecular-weight-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/rna-molecular-weight-calculator "RNA Molecular Weight Calculator") new ## [RNA Molecular Weight Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2398&virtuemart_category_id=244&Itemid=173) Estimate molecular weight of a single-stranded RNA ... Be the first to review product [ ![Punnett Square Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-punnett-square-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/punnett-square-calculator "Punnett Square Calculator") new ## [Punnett Square Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2405&virtuemart_category_id=244&Itemid=173) Calculate offspring genotype and phenotype probabilities ... Be the first to review product [ ![Protein Molecular Weight Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-protein-molecular-weight-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/protein-molecular-weight-calculator "Protein Molecular Weight Calculator") new ## [Protein Molecular Weight Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2399&virtuemart_category_id=244&Itemid=173) Estimate protein molecular weight from number of amino ... Be the first to review product [ ![Population Growth Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-population-growth-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/population-growth-calculator "Population Growth Calculator") new ## [Population Growth Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2390&virtuemart_category_id=244&Itemid=173) Calculate population size after a period of growth using ... Be the first to review product [ ![Logistic Growth Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-logistic-growth-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/logistic-growth-calculator "Logistic Growth Calculator") new ## [Logistic Growth Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2392&virtuemart_category_id=244&Itemid=173) Calculate population size under logistic growth with a ... Be the first to review product [ ![Hardy-Weinberg Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-hardy-weinberg-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/hardy-weinberg-calculator "Hardy-Weinberg Calculator") new ## [Hardy-Weinberg Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2403&virtuemart_category_id=244&Itemid=173) Calculate genotype frequencies at Hardy-Weinberg ... Be the first to review product [ ![GC Content Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-gc-content-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/gc-content-calculator "GC Content Calculator") new ## [GC Content Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2400&virtuemart_category_id=244&Itemid=173) Calculate GC content percentage of a DNA or RNA sequence. ... Be the first to review product [ ![Exponential Growth Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-exponential-growth-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/exponential-growth-calculator "Exponential Growth Calculator") new ## [Exponential Growth Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2391&virtuemart_category_id=244&Itemid=173) Calculate exponential growth or decay given initial value, ... Be the first to review product [ ![Enzyme Activity Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-enzyme-activity-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/enzyme-activity-calculator "Enzyme Activity Calculator") new ## [Enzyme Activity Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2406&virtuemart_category_id=244&Itemid=173) Calculate enzyme activity in units (U) from reaction data. ... Be the first to review product [ ![DNA Reverse Complement Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-dna-reverse-complement-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/dna-reverse-complement-calculator "DNA Reverse Complement Calculator") new ## [DNA Reverse Complement Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2401&virtuemart_category_id=244&Itemid=173) Generate the reverse complement of a DNA sequence. Use this ... Be the first to review product [ ![DNA Molecular Weight Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-dna-molecular-weight-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/dna-molecular-weight-calculator "DNA Molecular Weight Calculator") new ## [DNA Molecular Weight Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2397&virtuemart_category_id=244&Itemid=173) Estimate molecular weight of a single-stranded or ... Be the first to review product [ ![DNA Melting Temperature Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-dna-melting-temperature-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/dna-melting-temperature-calculator "DNA Melting Temperature Calculator") new ## [DNA Melting Temperature Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2402&virtuemart_category_id=244&Itemid=173) Estimate the melting temperature (Tm) of a short DNA ... Be the first to review product [ ![Cell Doubling Time Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-cell-doubling-time-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/cell-doubling-time-calculator "Cell Doubling Time Calculator") new ## [Cell Doubling Time Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2393&virtuemart_category_id=244&Itemid=173) Calculate cell doubling time (generation time) from cell ... Be the first to review product [ ![Bacterial Growth Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-bacterial-growth-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/bacterial-growth-calculator "Bacterial Growth Calculator") new ## [Bacterial Growth Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2394&virtuemart_category_id=244&Itemid=173) Estimate bacterial count after n generations from an ... Be the first to review product [ ![Allele Frequency Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-allele-frequency-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/science-calculators/biology-calculators/allele-frequency-calculator "Allele Frequency Calculator") new ## [Allele Frequency Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2404&virtuemart_category_id=244&Itemid=173) Calculate allele frequencies from genotype counts in a ... 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