Biology Calculators (Page 3)
Genetics, ecology and physiology metrics — biology calculations.
Respiratory Quotient Calculator
Enter CO₂ produced and O₂ consumed to compute the respiratory quotient RQ, judging whether the body or cells burn carbohydrates, protein, or fat as the main fuel.
Logistic Growth Calculator
Enter current population, intrinsic growth rate, and carrying capacity to compute the net growth for the next time step and understand the S-shaped (logistic) population curve.
DNA Ligation Calculator
Enter vector mass, vector and insert lengths, and the target molar ratio to compute the insert DNA mass needed for a ligation reaction.
Genotype Frequency Calculator
Enter the counts of AA, Aa, and aa individuals to compute each genotype frequency and the allele frequencies p (A) and q (a) for population-genetics and Hardy–Weinberg analysis.
Generation Time Calculator
Enter the initial count, final count, and elapsed time to compute the number of generations and the generation time (doubling time), assessing bacterial growth rate.
Dry Matter Basis Calculator
Enter an as-fed (wet) nutrient percentage and the sample moisture percentage to convert it to a dry-matter basis (DMB%), for fair comparison of feeds, forage and crop nutrition.
Specific Leaf Area Calculator
Enter leaf area and leaf dry weight to compute specific leaf area SLA = leaf area ÷ leaf dry weight, evaluating how thin and spread the leaf is — a core plant functional trait.
Germination Rate Calculator
Enter the number of germinated seeds and the total sown to compute the germination rate = germinated ÷ sown × 100%, and show the ungerminated count, for evaluating seed quality and sowing amount.
SLA / LMA Converter
Choose the conversion direction and enter a value to instantly convert between specific leaf area SLA (cm²/g) and leaf mass per area LMA (g/m²) — reciprocals with area-unit conversion.
NAR Calculator
Enter the plant dry weights, leaf areas at two sampling times, and the interval in days to compute the net assimilation rate (NAR), the dry-matter gain per unit leaf area per unit time — a core growth-analysis metric.
Transpiration Rate Calculator
Enter water loss, leaf area, and time to compute the transpiration rate (g·m⁻²·h⁻¹) and convert it to mmol·m⁻²·s⁻¹, quantifying leaf water loss intensity.
Net Photosynthesis Calculator
Enter gross (total) photosynthesis and respiration to compute net photosynthesis Pn = Pg − Rd, quantifying the actual carbon assimilation after subtracting respiration.