Official iPhone app

BenchLine Lab Utility

BenchLine Lab Utility is the official iPhone app from bench-line.com. It is a focused, offline-first laboratory calculator for trained users performing routine bench calculations.

Download on the App Store Visit BenchLine home

Formula-backed routine laboratory calculations

The BenchLine app supports dilution calculations, serial dilution planning, molarity and required-mass calculations, buffer preparation, laboratory unit conversion, and RPM/RCF centrifuge conversion. Inputs, assumptions, warnings, and formula references remain visible where they matter.

Dilutions and molarity

Plan single-step and serial dilutions, calculate molarity, and determine required reagent mass.

Preparation workflows

Prepare common buffers and review reagent-form choices, method notes, warnings, and assumptions.

Conversion tools

Convert common laboratory units and move between RPM and RCF using rotor radius.

Local saved work

Save presets and calculation history on the device without an account or cloud calculation-history sync.

Offline-first privacy

Core workflows work offline. BenchLine does not require an account and does not include advertising or analytics SDKs. Presets, history, settings, and active sessions are stored locally on the device.

BenchLine is not a lab notebook, ELN, LIMS, protocol system, diagnostic tool, medical device, or replacement for SOPs and professional judgment.

Explore the calculation guides

Dilution calculator Serial dilution planner Molarity calculator Buffer preparation RPM / RCF converter Offline lab calculator