LabTools: Lab Calculator

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About this app

LabTools is a laboratory calculator toolkit for HPLC, GC, ICP and QC work: calibration curve with LOD/LOQ, dilution, molarity, pH buffers, method validation and control charts. 40 focused modules and 44 unit converters for analytical chemists, lab technicians, researchers, and QA/QC teams, from routine calculations to method development, instrument utilities, and professional reporting.

CHEMICAL CALCULATIONS & SOLUTION PREP
• Dilution calculations with concentration and volume unit handling
• Mass ↔ molarity calculations
• Lambert-Beer Law for absorbance, concentration, path length, and molar absorptivity
• pH buffer preparation using the Henderson-Hasselbalch equation
• Stock standard preparation with purity and salt corrections
• Mobile phase and solvent mixing
• Brix ↔ refractive index and other specialist conversions

VALIDATION, STATISTICS & QUALITY CONTROL
• Calibration Curve with linear regression, equation, R², residuals, %RE, and optional LOD/LOQ
• Method Validation aligned with ICH Q2(R2), Eurachem, and ISO concepts
• Mean, SD, RSD/CV, acceptance limits, F-test, and t-test
• QC Control Chart with Westgard rule evaluation and Batch QC Review

CHROMATOGRAPHY & INSTRUMENT WORK
• HPLC Method Transfer for flow, injection volume, gradient timing, and dwell-volume effects
• HPLC Backpressure estimation
• Column Volume, flush planning, dead volume, and extra-column kinetics
• Chromatographic Peak Performance and system-suitability calculations
• GC inlet Vapor Volume, Method Translator, and Headspace Optimizer
• IC Sequence time, eluent planning, and column capacity
• Gas Consumption, ultracentrifuge run time, microwave digestion pressure, and TDS (ICP)

INSTRUMENT, SPECTRAL & REFERENCE TOOLS
• ICP-MS and ICP-OES interference references
• HRMS molecular formula prediction and exact-mass/adduct calculations
• Rheometer operating-range planning with interactive visualization
• Cell & Colony Counter with camera or image support
• Interactive Periodic Table with isotope data, spectra, nuclides, flashcards, and molar-mass tools
• Spectrum Reference covering the electromagnetic spectrum
• Guided instrument troubleshooting for HPLC, GC, ICP-MS, ICP-OES, and FTIR
• Instrument Scheduler and maintenance records with due-date reminders

LAB PLANNING & EVERYDAY UTILITIES
• Lab Power & UPS planner for instrument loads, power factor, phase distribution, protection estimates, and backup runtime
• Broad Unit Converter for laboratory and physical quantities
• Kinematic ↔ dynamic viscosity through density, % w/w ↔ % v/v, RPM ↔ RCF, and absorbance ↔ transmittance
• Scientific Calculator
• Stopwatch and Timer designed for bench work

PROFESSIONAL REPORTS & ARCHIVE
Export supported calculations and records as polished PDF, Excel, or CSV files. Customize PDF reports with your company logo, brand color, address, accreditation line, operator and instrument details, signature lines, page numbering, and footer text. Save results in the in-app Archive for later review and reporting.

FREE TO USE, WITH OPTIONAL PRO
Core calculators and everyday utilities remain free to use. A 7-day trial automatically unlocks all PRO calculators, advanced validation and instrument tools, full Archive access, and exports from the first launch — no credit card required. After the trial, continue using the free tools or subscribe to retain full PRO access.

BUILT FOR REAL LAB WORK
• No account or sign-up required
• Calculation data and saved records remain on your device
• Clear in-app explanations for formulas, inputs, assumptions, and technical terms
• Light and dark themes
• Available in English, German, Russian, Chinese, Japanese, French, and Spanish

Whether you are preparing a standard, checking a chromatographic method, reviewing QC data, planning a new instrument installation, or creating a validation report, LabTools keeps essential laboratory work organized and close at hand.
Lab calculators for analytical chemistry — GC/HPLC, dilution, molarity & more
Updated on
Nov 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info, App activity, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

-New tools for GC, IC, ultracentrifugation, microwave digestion and density scales, plus more unit conversions
-Improved calculations and instrument troubleshooting
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
RODOLJUB RADULOVIĆ
support@labtoolsapp.com
Pozeska 146 17 11030 BEOGRAD-ČUKARICA Serbia