LAB TOOLS
Free calculators
for microfluidics.
37+ interactive tools built for researchers. Buffer recipes, dilution volumes, pressure drop, and more.
Assay Analyser — 4PL Curve Fit
Upload plate reader data (ELISA, immunoassay), fit a 4-parameter logistic calibration curve, and interpolate unknown sample concentrations with QC validation.
Primer Tm Calculator
Calculate oligonucleotide melting temperature using the nearest-neighbour method. Adjust Na+ and primer concentration for on-chip PCR primer design.
Sequence GC Content Analyser
Analyse DNA or RNA sequence composition — GC%, base counts, molecular weight and visual base distribution for probe and amplicon design.
Restriction Enzyme Cut Site Finder
Scan a DNA sequence for restriction enzyme recognition sites. View cut positions, fragment sizes and a linear map for cloning design.
Channel Dimension Calculator
Calculate microfluidic channel dimensions from target shear stress, or find shear stress from known geometry. Includes hydraulic diameter, velocity and Reynolds number.
Residence Time Calculator
Calculate how long a sample spends in each section of a microfluidic chip. Add multiple channel segments — straight, serpentine, tubing, chambers.
LOD / LOQ Calculator
Determine limit of detection and limit of quantification from blank replicates or calibration curve data. Essential for validating on-chip assay sensitivity.
Probit LOD95 Calculator
Fit probit regression to binary diagnostic assay data and estimate LOD95 with confidence intervals. For PCR, ELISA, and other yes/no diagnostic dilution series.
Capillary Pressure Calculator
Calculate capillary pressure in circular or rectangular microchannels using the Young-Laplace equation. Adjust surface tension, contact angle, and channel geometry.
Droplet Size Estimator
Estimate droplet diameter, volume, and generation frequency for T-junction and flow-focusing geometries. Calculates Capillary number from your flow conditions.
Diffusion & Mixing Time Estimator
Estimate diffusion time, Péclet number, and required channel length for complete mixing in laminar microfluidic flow. Includes presets for small molecules, proteins, and cells.
Two-Phase Flow Regime Predictor
Predict the flow regime (squeezing, dripping, jetting) in a microfluidic channel from Capillary and Weber numbers. Includes visual flow pattern diagrams.
Chip Volume Calculator
Add multiple channel segments to calculate total internal volume of a microfluidic chip. Includes dead volume estimation and reagent planning with waste factor.
ELISA Plate Layout Planner
Interactive 96-well plate map for ELISA assay planning. Assign standards, samples, blanks and controls with colour coding. Auto-fill dilution series and export as CSV.
Protein Molecular Weight Calculator
Calculate protein molecular weight, extinction coefficient (ε₂₈₀), isoelectric point (pI), and amino acid composition from a sequence. Supports FASTA input.
Buffer Recipe Calculator
Calculate exact component masses for common lab buffers — PBS, Tris-HCl, HEPES, MES, Citrate, Acetate, MOPS, Bicarbonate — at your target pH, concentration, and volume.
DNA Ligation Calculator
Calculate the amount of insert DNA needed for ligation at a target insert:vector molar ratio. Outputs a complete reaction recipe with volumes.
Fluorescence Unit Converter
Convert RFU readings to concentration using a linear standard curve. Enter standards, fit the regression, and convert unknowns with R² validation.
Haemocytometer & Cell Seeding Calculator
Full haemocytometer workflow — enter corner-square counts, get cells/mL with viability. Then calculate seeding volumes for any well plate format.
Doubling Time Calculator
Calculate cell doubling time from counts or OD readings. Fits exponential growth, extracts growth rate, and predicts future cell numbers with a growth curve chart.
Aluminium Mould Generator
Upload STL channel features to generate a 4-inch aluminium mould for thermoplastic hot embossing. Configure base thickness, preview in 3D, and export as STEP.
Sørensen’s Phosphate Buffer Calculator
Calculate exact volumes and weights of monobasic and dibasic sodium phosphate to prepare a buffer at your target pH and concentration.
Lyophilised Oligo Reconstitution Calculator
Work out the exact volume of TE buffer or water to add to a lyophilised oligonucleotide to reach your desired concentration.
Beer-Lambert Absorbance Calculator
Convert between absorbance, concentration, and path length using the Beer-Lambert Law. Includes common extinction coefficients for DNA, RNA, proteins, and dyes.
Molarity Calculator
Enter the molecular weight from your reagent bottle, pick a concentration and volume, and calculate exactly how much powder to weigh out.
Reynolds Number Calculator
Calculate the Reynolds number for rectangular microfluidic channels. Includes preset fluid properties, flow regime classification, and Dean number for curved channels.
Serial Dilution Calculator
Generate a complete serial dilution table with transfer volumes, diluent volumes, and concentrations for each step. Perfect for dose-response and calibration curves.
Flow Rate & Velocity Converter
Convert between flow rate and linear velocity for rectangular or circular microfluidic channels. Shows all common units simultaneously.
Dead Volume / Tubing Calculator
Calculate the internal volume of tubing and fittings from inner diameter and length. Includes flush time estimates and preset tubing types (PEEK, silicone, FEP).
Droplet Volume Calculator
Calculate droplet volume, surface area, and surface-to-volume ratio from diameter (or vice versa). Includes droplets-per-microlitre count for emulsion work.
C1V1=C2V2 Dilution Calculator
Calculate the volume of stock solution needed to prepare a dilution, or the final volume from a known aliquot. The classic dilution equation.
Concentration Unit Converter
Convert between M, mM, µM, nM, mg/mL, µg/mL, ng/mL, and %(w/v). Enter any concentration and see all equivalent units instantly.
Centrifuge RCF / g-force Calculator
Convert between RPM and relative centrifugal force (×g). Enter your rotor radius and get the exact RCF, or find the RPM needed for a protocol.
PCR Master Mix Calculator
Calculate reagent volumes for your PCR master mix. Set the number of reactions, adjust concentrations, and get a pipetting table with built-in overage.
Cell Counting & Seeding Calculator
Convert haemocytometer counts to cells/mL and calculate the volume needed to seed plates, flasks, or microfluidic devices at a target density.
DNA/RNA Concentration & Purity Calculator
Calculate nucleic acid concentration from A₂₆₀ readings with 260/280 and 260/230 purity ratios. Colour-coded quality indicators flag contamination.
Pressure Drop Calculator
Estimate pressure drop across rectangular or circular microfluidic channels using the Hagen-Poiseuille equation. Includes fluid viscosity presets.
Mixing Length Calculator
Estimate the channel length required for diffusive mixing in laminar flow. Calculates Péclet number and suggests passive mixer strategies.
Ready to bring your design to life?
From rapid prototyping to production-scale injection moulding, we handle the full workflow. Upload your design and get a quote.
Europe · North America · Singapore · Shipping worldwide