Free Lab Calculators and Unit Converters for Researchers

LabInflow’s free resource hub for lab calculators and unit converters designed to accelerate your research workflow —  tools designed specifically for life science researchers, technicians, Chemist and academic labs. Whether you’re prepping a PCR reaction, calculating molarity, or diluting a stock solution, our tools help you save time, avoid manual errors, and stay focused on your experiments — no login, no download, 100% free.

🔗 PCR Master Mix Calculator

Quickly calculate volumes of primers, DNA template, buffer, and water for your PCR reactions.

🔗 Dilution Calculator (C₁V1 & C₂V₂)

calculate how to dilute a stock solution of known concentration and get working concentrations with ease.

🔗 Serial Dilution Calculator

Quickly get serial dilutions, calculator gives you complete detailed table and option to download excel or PDF

🔗 DMSO Working Solution Prep Tool

Calculate how much DMSO to add for specific final concentrations in your assay or cell culture.

🔗 Cell Seeding Density Calculator

Estimate how many cells to plate based on flask or well size and desired confluency.

🔗 Plasmid Copy Number Calculator

Convert plasmid DNA concentration (ng/µl) into copy number based on plasmid size.

🔗 Buffer Molarity Calculator

Determine how much compound to weigh for specific molar concentrations in solution.

🔗 Serial Dilution Calculator

Auto-generate stepwise volumes for 2-fold, 10-fold, or custom serial dilutions.

🔗 OD600 to Cell Count Converter

Estimate bacterial or yeast cell density from OD600 readings.

🔗 Cell Culture Media Volume Estimator

Calculate how much media is needed per flask, plate, or passage routine.

🔗 Lab Timer (Multi-Timer Tool)

Set and manage multiple lab timers simultaneously for different protocol steps.