# Hydraulic Engineer

> Calculations for Hydraulics

Canonical page: [https://chrome-stats.com/d/id410465591](https://chrome-stats.com/d/id410465591)

## Overview

- **ID:** `id410465591`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Historycentral.com
- **Category:** Productivity
- **Rating:** 4.00 / 5 (1 ratings)
- **Version:** 2.02
- **Last updated:** 2026-03-22
- **First published:** 2010-12-19
- **Size:** 19 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/hydraulic-engineer/id410465591)
- **Website:** [https://www.historycentral.com/Apps/Formulator/Hydraulic.html](https://www.historycentral.com/Apps/Formulator/Hydraulic.html)
- **Privacy policy:** [http://www.multieducator.net/privacy.html](http://www.multieducator.net/privacy.html)

## Description

HYDRAULIC ENGINEER is the most comprehensive hydraulic engineering calculator
  available on the App Store, featuring over 1,000 formulas across 13
  specialized calculator categories, 8 temperature scale converters, and 8
  professional reference tables.

  CALCULATOR CATEGORIES
  - Actuator Formulas — cylinder force, stroke, speed, and rod calculations
  - Fluid Power — pressure, flow, horsepower, and torque calculations
  - Pump Laws — affinity laws for speed, flow, pressure, and power
  - Vehicle Drive — drive speed, tractive effort, gradeability, and drawbar pull
  - Hydraulic Tubing — wall thickness, burst pressure, and working pressure
  - Cylinder Calculations — extend/retract speed, rod end area, and cycle times
  - Thermal Hydraulics — heat generation, reservoir cooling, heat exchangers,
  and energy to heat fluid
  - Oil Velocity & Pressure Loss — pipe velocity, pressure drop per foot, and
  total system losses
  - Pipe Flow — Reynolds number, Darcy-Weisbach head loss, laminar friction, and
   orifice flow
  - Accumulator Sizing — discharge volume, precharge pressure, adiabatic and
  isothermal gas volumes
  - Reservoir Sizing — open/closed circuit sizing, cylinder-based sizing, and
  oil weight calculations
  - AC/DC Electrical — Ohm's law, power, resistance, inductance, and motor
  selection
  - Area Formulas — 60 geometric area calculations for every common shape

  700+ CONVERSION FORMULAS
  Pressure, horsepower, BTU, flow rates, linear measure, square measure, cubic
  measure, liquid measure, weights, watts, power, HVAC, metric, sand-to-volume,
  and fraction conversions.

  8 TEMPERATURE SCALES
  Convert between Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton,
  Delisle, and Romer — 56 conversion formulas covering every combination.

  8 PROFESSIONAL REFERENCE TABLES
  - Pipe Schedule (Schedule 40 & 80)
  - ISO Viscosity Grades
  - Recommended Flow Velocities
  - Hydraulic Hose Sizing (SAE)
  - JIC Thread Sizes
  - Pipe Roughness Values
  - O-Ring Sizes (AS568)
  - Wire Rope Working Load Limits

  KEY FEATURES
  - Save and share any calculation result
  - Share reference tables
  - Calculation history
  - Favorites for quick access to your most-used formulas
  - Switch between US Customary and SI Metric units
  - Dual-unit display shows both US and metric values simultaneously
  - Dark mode optimized interface
  - Works offline — no internet connection required

  PREMIUM UPGRADE
  Unlock sharing, advanced calculator sections, and unlimited history with a
  one-time lifetime purchase — no subscriptions.

  HYDRAULIC ENGINEER is designed for working hydraulic engineers, technicians,
  maintenance professionals, and engineering students. If there are formulas or
  reference tables you'd like to see added, just use the built-in feedback
  feature to let us know.

## Rankings

- #929,420 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id410465591)