# SFX Fluid Calculator

> Hydraulic & pneumatic calculations for SFX crews. Accounts for flow losses

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

## Overview

- **ID:** `com.sfx.fluidcalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** PSI-Design
- **Category:** TOOLS
- **Downloads:** 2
- **Version:** 1.3
- **Last updated:** 2025-11-28
- **First published:** 2025-11-28
- **Publisher country:** GB
- **Size:** 9.51 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.sfx.fluidcalc)
- **Website:** [https://www.psi-design.co.uk](https://www.psi-design.co.uk/)
- **Privacy policy:** [https://psi-design.co.uk/privacy-policy/](https://psi-design.co.uk/privacy-policy/)

## Description

**Calculate hydraulic and pneumatic systems for special effects work**<br><br>Designed for SFX crews working with fluid-powered cylinders and gas cannons. Unlike other calculators, this app accounts for flow restrictions through hoses and fittings - giving you realistic performance predictions, not just theoretical values.  It allows much higher flow rates &amp; velocities than industrial calculators are intended for<br><br>**Three Specialized Calculators:**<br><br>**Hose &amp; Elbow Calculator**<br>Calculate pressure drop and maximum flow through your hose runs. See how hose length, diameter, and fittings affect performance.<br><br>**Cylinder Calculator**<br>Determine forces, velocities, and timing for hydraulic and pneumatic cylinders. Includes buckling analysis for compression loads with safety factors.<br><br>**Gas Cannon Calculator**<br>Simulate compressed gas expansion for pneumatic cannons. Model gas transfer through orifices with choked flow calculations. Based on testing, 70% efficiency matches real-world results - a great starting point for your setup.  It has a setting for dead-space (the volume at the top of the cylinder + hose from the valve to the cylinder) which has a big effect on the force &amp; velocity profile.  You can use this to run higher pressures but to spread out the force / acceleration to stop it buckling the rig.<br><br>**Why Flow Restrictions Matter:**<br>Most calculators assume unlimited flow, but real-world hoses and fittings create significant restrictions. This app shows you:<br>- Actual pressure available after hose losses<br>- True flow capacity of your system<br>- How to properly size hoses and ports<br><br>**Features:**<br>✓ Metric and imperial units<br>✓ Multiple fluid types (hydraulic oil, water, air, nitrogen)<br>✓ BSP fitting sizes built-in up th 2&quot;<br>✓ Print-friendly reports<br>✓ Works offline<br>✓ No ads, no tracking, completely free<br><br>**Built by SFX crew for SFX crew**<br><br>Whether you&#39;re rigging a cylinder-powered effect or calculating cannon trajectories, this app gives you the numbers you need to plan your setup and troubleshoot performance issues.  You can feed the force / velocity profiles into Solidworks Mothion Analysis to calculate actual trajectories.

## Rankings

- #3,052,036 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `com.android.vending.CHECK_LICENSE`
- `com.sfx.fluidcalc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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