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Welcome to DiveToolbox

DiveToolbox is a professional dive planning application built for recreational and technical divers who take safety seriously. It provides decompression dive planning, gas calculations, and blending tools — all accessible from any device.

DiveToolbox landing pageDiveToolbox landing page

Screenshot of the landing page hero section with the "Plan Safer Dives with Professional Tools" headline — welcome-hero-light.png / welcome-hero-dark.png

What is DiveToolbox?​

DiveToolbox is a comprehensive suite of dive planning tools powered by the Bühlmann ZH-L16C decompression algorithm, trusted by technical divers worldwide. Whether you're planning a simple recreational dive or a complex multi-gas decompression dive, DiveToolbox has you covered.

Key features​

  • Dive Planner — Plan single-level and multi-level decompression dives with customizable gradient factors, multiple gas mixes, and detailed ascent profiles
  • Gas Calculators — Calculate MOD, EAD, END, and Best Mix instantly for nitrox and trimix diving
  • Gas Blending — Precise partial pressure calculations with step-by-step blending instructions for nitrox and trimix
  • SAC / RMV Calculator — Track and calculate your surface air consumption
  • Rock Bottom — Calculate minimum gas reserves for emergency ascent scenarios
  • Successive Dives — Plan repetitive dives with residual nitrogen tracking
  • Gradient Factors — Understand how GF settings affect your no-deco limits
  • Unit Conversions — Convert between metric and imperial units for depth, pressure, temperature, volume, weight, and speed

Who is it for?​

Recreational divers​

  • Quick no-decompression limit (NDL) calculations
  • Nitrox best mix finder
  • Simple unit conversions
  • Easy-to-understand results

Technical divers​

  • Multi-gas decompression planning
  • Customizable gradient factors (GF Low / GF High)
  • Trimix blending calculations
  • Detailed ascent profiles with runtime tables

Dive professionals​

Instructors and divemasters can use DiveToolbox to plan training dives and share plans with their students. The Dive Professional subscription lets you grant premium access to your students directly from your account.

Dive centers​

Dive centers and training facilities can equip their entire team with professional tools. The Dive Center subscription includes access codes for instructors, staff, and students — all managed from a single account.

Works everywhere​

DiveToolbox is available as a web application and as a mobile app for iOS and Android. Your data syncs across all your devices. The app is available in 6 languages: English, French, German, Spanish, Italian, and Russian.

DiveToolbox dashboardDiveToolbox dashboard

Screenshot of the dashboard showing saved dive plans and saved tanks cards — welcome-dashboard-light.png / welcome-dashboard-dark.png

Documentation overview​

This documentation will help you get the most out of DiveToolbox:

  • Getting Started — Create your account, explore the dashboard, and configure your settings
  • Dive Planner — Learn how to plan dives, configure tanks, read results, and share your plans
  • Calculators — Detailed guides for each calculator and tool
  • Account — Manage your profile, billing, and team access
  • Mobile App — Install and use the mobile app
Free tools

The Conversions, MOD/EAD/END, and Gradient Factors calculators are completely free. Create an account to unlock the Dive Planner, Gas Blending, SAC Calculator, Rock Bottom, and Successive Dives tools.