Best Buoyancy Calc Apps

186+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated May 2026

Every iPhone needs a few good buoyancy calc apps. We benchmark 186+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Buoyancy Calc

Buoyancy Calc#1

Buoyancy Calc by Eric Hamiter

Determine your required weight
Editor's Choice
🔧 Utilities
3.1(25 ratings)
Free
Buoyancy Calc screenshot 1

Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.

Scuba Diving Computer Oceanic+#2

Scuba Diving Computer Oceanic+ by Huish Outdoors, LLC

Snorkel & Dive Log Tracker
Strong Contender
⚽ Sports
4.4😐(4.4K ratings)
FreeAdsIn-App Purchases
#59in Sports
Scuba Diving Computer Oceanic+ screenshot 1
Scuba Diving Computer Oceanic+ screenshot 2
Scuba Diving Computer Oceanic+ screenshot 3
Scuba Diving Computer Oceanic+ screenshot 4
Scuba Diving Computer Oceanic+ screenshot 5
Scuba Diving Computer Oceanic+ screenshot 6

Transform your Apple Watch Ultra into a comprehensive dive computer for scuba, freediving, and snorkeling. Explore new locations with heatmaps, track your routes, organize underwater media, and share your adventures securely. Plan dives, monitor real-time data, and stay safe with advanced algorithms.

What We Love

  • 🚀 Bright, clear display
  • 👍 Intuitive and easy to use
  • 🚀 Detailed dive logs and analytics
  • 👍 Helpful safety alerts and vibration feedback

Room to Improve

  • 🔒 Subscription-based model
  • 🐛 Syncing issues between watch and phone
  • 🐛 Unreliable dive mode activation
Pool Math by TroubleFreePool#3

Pool Math by TroubleFreePool by TroubleFreePool

Easy pool care and maintenance
Worth Considering
🔧 Utilities
3.7😊(272 ratings)
FreeIn-App Purchases
Pool Math by TroubleFreePool screenshot 1
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Pool Math by TroubleFreePool screenshot 3
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Pool Math by TroubleFreePool screenshot 6

Easily manage your swimming pool's water chemistry by tracking key levels like chlorine and pH. This app calculates the precise amounts of chemicals needed to maintain clear, algae-free water, offering a cost-effective alternative to pool store advice.

What We Love

  • 💎 Excellent for maintaining a clean, balanced pool
  • 🔍 Comprehensive tracking of test results and chemical additions
  • 🧠 Helpful recommendations for chemical adjustments
  • ⚙️ Useful features like SLAM mode and timeline

Room to Improve

  • 🐛 Issues with data syncing and backup
  • 🤔 Unintuitive interface and navigation
  • 💰 Subscription model and lack of one-time purchase

More Buoyancy Calc apps to explore

4
Orenda
Orenda
Orenda
Pool Calculator and Education
Free

This app helps you master pool chemistry by accurately calculating chemical dosages and balancing water based on the LSI. It offers a user-friendly experience for both novices and professionals, including a volume estimator and educational videos.

Chemical dosing calculatorLSI water balancingPool volume estimator
📊 Productivity
(452)
free
5
SCUBA Weight Estimator
SCUBA Weight Estimator
SCUBA Weight Estimator
by Ryan Ebner
Free

Estimate the correct amount of weight needed for proper buoyancy on SCUBA dives. The app uses a proprietary algorithm considering factors like your weight, fitness, exposure suit, BCD, tank, and water type. It provides a helpful starting point for weight checks.

Buoyancy weight estimationProprietary calculation algorithmConsiders multiple dive factors
🔧 Utilities
(15)
free
6
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Calculator for pilots
$9.99

This aviation calculator app offers 27 functions for navigation, fuel calculations, and conversions. It includes a versatile timer for tracking multiple time zones and performing countdowns with alerts. Designed for pilots, it simplifies complex flight planning and in-flight computations.

27 Aviation Functions22 Aviation ConversionsNavigational Calculations
🗺️ Navigation
(5K)
paid
7
Physics Toolkit
Physics Toolkit
Physics Toolkit
Physics calculators and tables
Free

This app provides a comprehensive suite of physics calculators, essential formulas, and detailed element information. It's designed to be a valuable resource for students and professionals in the field of physics.

Extensive physics calculatorsCommon formulas referenceDetailed element information
📚 Education
(49)
free
8
Tank Measure: Volume Calc
Tank Measure: Volume Calc
Tank Measure: Volume Calc
Cylinder Cone Capsule Oval
Free

Calculate the volume of various tank shapes with precision and ease. This user-friendly tool supports a wide range of tank types and units, making it ideal for professionals and DIY enthusiasts alike. It offers advanced algorithms for accuracy and is optimized for efficiency on your device.

Multiple tank shape calculatorsHigh precision volume calculationsUser-friendly interface
🔧 Utilities
(42)
free with in-app purchases
9
Calculator of Air
Calculator of Air
Calculator of Air
Psychrometric Charts Tool
Free

This tool calculates humidity-related air properties with a calculator-like interface. It supports six key parameters and provides accurate results even under extreme conditions. Ideal for HVAC, cleanrooms, and industrial drying.

Calculate six humidity parametersAccurate results under extreme conditionsSupports Celsius and Fahrenheit
📊 Productivity
(14)
ad-supported
10
Buoyancy Calculator
Buoyancy Calculator
Buoyancy Calculator
Calculate Buoyant Force
$2.99

This app simplifies fluid mechanics calculations, allowing users to determine buoyant forces, densities, volumes, and weights. It offers real-time visualizations and interactive graphics to help understand physics principles like Archimedes' principle.

Buoyant Force CalculatorDensity CalculatorVolume Calculator
📚 Education
(3)
paid
11
Drop Hurt Calc
Drop Hurt Calc
Drop Hurt Calc
by Exxon Mobil Corporation
Free

Estimate the potential hurt level of falling objects with this tool. Capture object details, photos, and notes to visualize the impact and generate PDF reports for sharing.

Estimate potential hurt level (PHL)Capture object details, photos, and notesVisualize PHL on graphs
💼 Business
(11)
free
12
Bell & Gossett - SystemSyzer
Bell & Gossett - SystemSyzer
Bell & Gossett - SystemSyzer
by Xylem Inc.
Free

This HVAC tool aids in piping system design, offering calculators for friction loss, velocity, and heat load. It includes a Cv tool and a specialized calculator for balancing contractors to determine valve settings and flow rates.

Friction loss and velocity calculatorHeat/cooling load calculationCv tool
🔍 Reference
(7)
free
13
Spill Calc Lite
Spill Calc Lite
Spill Calc Lite
by Kelly Gayneaux
Free

Quickly estimate surface spill volumes in the field with this tool. Calculate for square, rectangular, circular, and triangular spills, with options for tank displacement. Features a clean interface and helpful library for efficient on-site calculations.

Estimate surface spill volumesCalculate for square, rectangular, circular, and triangular spillsOptional tank displacement calculation
📊 Productivity
(1)
free
14
CINCINNATI Load Calc
CINCINNATI Load Calc
CINCINNATI Load Calc
Press Brake Tonnage Calculator
Free

This tool helps metal fabricators calculate the necessary tonnage for air bending parts on press brakes. It guides users through selecting material type, thickness, and die opening to determine tonnage, minimum flange length, and inside bend radius.

Air bend tonnage calculationMaterial type selectionMaterial thickness input
💼 Business
(10)
free
15
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
Construction Math & Trade Pro
Free
$29.99 | 100% OFF

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

Sheet metal calculations (radius, offset, wrapper length)Trigonometric functions (sine, cosine, tangent, arc)HVAC specific calculations (fan law, CFM, velocity)
🔧 Utilities
(40)
free with in-app purchases
16
Oxygen Cylinder Autonomy Calc
Oxygen Cylinder Autonomy Calc
Oxygen Cylinder Autonomy Calc
for Diving and First Aid
Free
⚽ Sports
(0)
17
P-T Calculator
P-T Calculator
P-T Calculator
by National Refrigerants, Inc.
Free

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

Pressure/Temperature calculationSuperheat/Subcool calculationAutomatic altitude correction
🔍 Reference
(51)
free
18
Water Flow Calculators
Water Flow Calculators
Water Flow Calculators
by Waterous
Free

This educational app provides calculations for water flow using friction loss, smooth nozzle, NFA, and Iowa formulas. It's designed for professionals and students needing quick and accurate fluid dynamics computations.

Friction loss calculationsSmooth nozzle calculationsNFA formula support
📚 Education
(5)
free
19
My Civil CalC
My Civil CalC
My Civil CalC
by Big Slice Technologies Private Limited (OPC)
Free

This calculator allows users to input measurements in feet-inch, meters, or millimeters and receive results in the desired units. It offers unit conversion for calculated results and supports sequential calculations using BODMAS logic. Calculations are saved in history and can be exported to PDF.

Input measurements with units (feet-inch, M, mm)Convert calculated results to alternative unitsPerform sequential calculations with BODMAS logic
📊 Productivity
(1)
free
20
Dive Calculator
Dive Calculator
Dive Calculator
by Zanthic Automation Inc.
Free

This app provides comprehensive scuba diving calculations, including basic, nitrox, and trimix gas mixes. It supports both metric and imperial units, and allows for gas volume and cost calculations for blending and top-ups. Results can be easily copied for documentation.

Basic, Nitrox, and Trimix calculationsGas volume and cost calculationsTop-up and bleed down mix calculations
⚽ Sports
(24)
free

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