Calculator

Cuvette Size Calculator: Match Cell to Sample Volume

Enter your sample volume and get the smallest cuvette that fits — from 20 µL ultra-micro to long-path cells.

Cuvette Size Calculator

Enter your available sample volume — we will recommend the smallest cell that fits, so you waste the least sample.

Sample volume (µL)

Volume vs Cell Type — Quick Reference

Cell type	Usable volume	Best for
Ultra-micro (20 µL)	10 – 20 µL	Precious samples, fluorescence, low-volume assays
Ultra-micro (50–200 µL)	40 – 200 µL	Most routine low-volume UV-Vis & fluorescence
Micro (700 µL)	200 – 700 µL	Standard sub-micro analysis
Semi-micro (~1.5 mL)	700 µL – 1.5 mL	Compromise between macro and micro
Macro (3.5 mL)	1.5 – 3.5 mL	Standard 10 mm work, matching pairs
Long-path (20–100 mm)	4 – 40 mL	Trace analysis, very dilute samples

Rule of thumb: use the smallest cell your sample volume allows — lower sample consumption, same optical quality. JGS1 quartz gives identical transmission whether the cell holds 20 µL or 3.5 mL.

Tell us your sample volume and instrument — we will pick the exact cell for you.
Send us your instrument model and sample type — our engineers will reply within 1 business day with the right specification and a firm price. Contact Scuvette →

Need a hand? Our engineers can help you select the right cuvette for your instrument and application — or supply custom optical cells to your drawing. Contact Scuvette →