Biology Calculators
Biology calculators for DNA analysis, genetics, molecular biology, and life sciences.
DNA Melting Temperature (Tm) Calculator
Calculate the melting temperature of DNA primers and oligonucleotides. Supports both basic (Wallace rule) and nearest-neighbor thermodynamic methods.
GC Content Calculator
Calculate the GC content percentage of any DNA or RNA sequence. Shows nucleotide composition, complementary strand, and molecular weight estimate.
Lotka-Volterra Predator-Prey Model Calculator
Simulate predator-prey population dynamics using the classic Lotka-Volterra equations. See how predator and prey populations oscillate over time.
Population Growth Rate Calculator
Model exponential and logistic population growth. Calculate doubling time, carrying capacity effects, and project future population from growth rates.
SEIR Epidemic Spread Model Calculator
Simulate disease spread using the SEIR model (Susceptible, Exposed, Infectious, Recovered). Adjust R0, incubation period, and recovery time.