Use our free nanoparticle calculators and analysis tools to model optical properties, estimate protein size, convert between nanoparticle concentration units, and analyze UV-Vis spectroscopy data. Choose the tool that best matches your application below.
Mie Theory Calculator
Model the wavelength-dependent optical properties of spherical nanoparticles and core-shell structures.
- Calculate extinction, absorption, and scattering
- Compare particle sizes and materials
- Explore core-shell structures
- Adjust the surrounding refractive index
Molecular Weight to Size Calculator
Estimate the minimum radius of a protein from its molecular weight to support particle formulation, conjugation, and assay design.
- Enter protein molecular weight
- Estimate minimum protein radius
- Compare protein dimensions with nanoparticle size
Nanoparticle Conversion Calculator
Convert between commonly used nanoparticle concentration metrics for formulation, assay development, and experimental planning.
- Mass concentration
- Atomic molarity
- Particle concentration
- Mass percent
UV-Vis Data Analysis Spreadsheet
Process and compare nanoparticle UV-Vis spectroscopy data using our analysis template.
- Plot UV-Vis spectra
- Apply dilution corrections
- Normalize spectra for comparison
- Compare spectral changes between samples
Which Tool Should I Use?
| If you want to... | Use this tool |
|---|---|
| Predict how particle size, material, shell structure, or surrounding medium affects optical behavior | Mie Theory Calculator |
| Estimate the approximate minimum size of a protein from its molecular weight | Molecular Weight to Size Calculator |
| Convert between nanoparticle mass, molarity, particle concentration, and mass percent | Nanoparticle Conversion Calculator |
| Plot, normalize, dilution-correct, or compare nanoparticle UV-Vis spectra | UV-Vis Data Analysis Spreadsheet |
Related Nanoparticle Resources
Looking for additional technical guidance? Explore our Nanoparticle Knowledge Base, protocols and characterization guides, or nanoparticle characterization techniques.
For help collecting and interpreting optical spectroscopy data, see the UV-Vis Spectroscopy Measurement and Analysis Guide.
Need help selecting which nanoparticle is right for your application?
Our technical team can help with nanoparticle selection, characterization, and custom particle development. Contact us.