🧬 Research Scholar’s Toolkit
Professional grade calculators for Ph.D. fieldwork, wet lab protocols, and thesis statistics.
⏳ Thesis Deadline
Track exactly how much time you have left.
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** “Work expands to fill time.”
Shannon-Wiener (H’)
Calculate species diversity index from raw counts.
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** H’ = – Σ (Pᵢ × ln Pᵢ)
Sample Size Calculator
Determine required ‘n’ using Slovin’s Formula.
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** n = N / (1 + Ne²)
Mark-Recapture
Lincoln-Petersen Index for estimating abundance.
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** N = (n1 × n2) / m2
Molarity Calculator
Calculate solute mass for preparing lab solutions.
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** Mass = M × L × MW
Dilution (C1V1)
Calculate volume of stock needed for working solution.
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** V1 = (C2 × V2) / C1
Beer-Lambert Law
Convert Absorbance (OD) to Concentration.
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** c = A / (ε × l)
Mean ± SEM
Generate Mean and Standard Error for Thesis Tables.
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** SEM = σ / √n
Chi-Square (X²)
Goodness of Fit test (Observed vs Expected).
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** X² = Σ (O-E)² / E
🧬 PCR Mastermix Chef
Calculate mix volumes for multiple reactions.
1x Recipe (µl):
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** Vol = (1x) × N × (1 + Err%)