Biology

Allele Frequency Calculator

Calculate allele frequencies and carrier probability using the Hardy-Weinberg equilibrium equation. Determine your chances of carrying a recessive genetic trait.

Annealing Temperature Calculator

Calculate the optimal PCR annealing temperature using primer and target DNA melting temperatures with the standard formula.

Bacteria Growth Calculator

Calculate bacterial population growth rate and doubling time using the exponential growth model with our free online generation time calculator.

Cell Dilution

Calculate cell dilution volumes and concentrations using the C1V1=C2V2 formula. Free online cell dilution calculator for microbiology and lab work.

Cell Doubling Time Calculator

Calculate cell doubling time, growth rate, and proliferation rate for cell cultures using initial and final concentrations with our free online cell doubling time calculator.

Dihybrid Cross Punnett Square

Calculate genotypic and phenotypic ratios for two traits using our interactive dihybrid cross Punnett square generator.

DNA Concentration Calculator

Calculate DNA, RNA, and oligonucleotide concentrations and yields from spectrophotometer absorbance readings.

DNA Copy Number Calculator

Calculate DNA copy number in a solution and estimate final copies after PCR amplification.

DNA to mRNA Converter

Transcribe DNA sequences to mRNA, translate mRNA to proteins, or perform reverse translations.

Ligation Calculator

Calculate the optimal insert mass needed for your DNA ligation and cloning reactions. Enter vector length, insert length, vector mass, and molar ratio to get the required insert mass.

Log Reduction Calculator

Calculate log reduction and percentage reduction of microorganisms after disinfection. Essential for microbiology, sterilization validation, and cleanroom compliance.

MLVSS Calculator

Calculate MLVSS concentration and mass for wastewater treatment using industrial or laboratory methods with our free online calculator.

Protein Concentration Calculator

Determine protein concentration from absorbance data using the Beer-Lambert law. Supports preset proteins and custom entries with dilution factor.

Protein Molecular Weight Calculator

Calculate the molecular weight of a protein or peptide from its amino acid sequence. Supports all 20 standard amino acids with up to 20 residues.

Punnett Square Calculator

Calculate genetic crosses using a monohybrid Punnett square. Predict offspring genotypes and phenotype ratios with our free online genetics calculator.

qPCR Efficiency Calculator

Calculate qPCR efficiency and amplification factor from the slope of your standard curve. Optimize your PCR assays with our free online calculator.

Rabbit Color Calculator

Predict rabbit offspring colors based on parent genetics. Use our rabbit color genetics calculator to determine possible fur colors and their probabilities.

Trihybrid Cross Punnett Square

Calculate trihybrid cross Punnett square for 3 traits with our free online genetics calculator. Analyze genotype and phenotype probabilities for offspring with 64-box Punnett square.

Wastewater Calculator

Calculate key wastewater treatment parameters including BOD loading, F/M ratio, hydraulic retention time (HRT), mean cell residence time (MCRT), sludge age, and sludge volume index (SVI) with our free online wastewater calculator.