Fixture Studio
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Online tools
Browse Daradu calculators for lighting, audio, video and rigging, and create Vista fixture profiles with Fixture Studio.
LIGHTING+AUDIO+VIDEO+RIGGING+WHAT’S NEXT?↗
01 / THE TOOLBOX
Tools
Browse calculators and online tools by category.
42 tools
IN YOUR BROWSER. NO SIGN-UP.Equal Bridle
Two-leg bridle tension from total load and equal sling angle.
Bridle Geometry
Solve equal bridle angle and tension from pick spacing and hook rise.
Unequal Bridle
Two-leg bridle tensions when left and right angles are different.
Point Load Split
Split a show load across a number of equal hanging points with a dynamic factor.
Sling Angle Factor
Single-leg sling tension from vertical load and angle from horizontal.
Hoist Load Planner
Average hoist load with dynamic allowance and WLL check.
Ballast Requirement
Ballast mass from overturning moment, ballast lever arm, and safety factor.
UDL Planner
Uniformly distributed load intensity from total payload and loaded length.
Point Reaction
Simple beam reactions for one point load between two supports.
Two-Load COG
Combined center of gravity from two known loads and positions.
Single-Phase Load
Current draw from single-phase power, voltage, and power factor.
Three-Phase Current
Line current from total three-phase load, supply voltage, and power factor.
Fixtures Per Circuit
How many identical fixtures you can land on one circuit with a safety margin.
DMX Universe Fill
Channel usage, spare channels, and universe count for a fixture package.
DIP Switch Helper
Convert a DMX start address into a 9-switch DIP pattern for older fixtures and accessories.
Voltage Drop
Copper cable voltage drop estimate for long lighting power runs.
Beam Spread
Coverage diameter from beam angle and throw distance.
Lux Coverage
Average illuminance estimate from lumens, beam angle, and throw.
Battery Runtime
Runtime estimate from battery capacity, load, and conversion efficiency.
Dimmer Channel Load
Channel current and utilization from lamp count, wattage, and channel rating.
Phase Balance
Check how evenly three phase currents are distributed.
Delay Time
Convert distance offset into loudspeaker delay time.
Distance From Delay
Convert milliseconds back into an acoustic distance offset.
SPL Distance Loss
Inverse-square estimate for level at a new distance.
Speaker Coverage
Coverage width at distance from nominal horizontal dispersion.
Wavelength
Frequency to wavelength conversion for quick timing intuition.
Phase Offset
Phase shift in degrees from path-length difference at a target frequency.
Amplifier Current
AC current estimate from amplifier output power and efficiency.
Sub Alignment
Distance offset to delay time for sub alignment work.
Audience Coverage
How many speaker zones you need across a room width.
Cable Delay
Signal delay through cable from length and velocity factor.
LED Wall Resolution
Pixel resolution from wall width, height, and panel pitch.
Pixel Pitch Viewing Distance
Recommended close-view distance from LED pitch.
Screen Size / Aspect Ratio
Width, height, and diagonal from aspect ratio and one known dimension.
Processor Load Planner
Estimate processor loading from total pixel count and processor capacity.
Brightness / Nit Budget
Estimate on-screen brightness after ambient and content reduction factors.
Signal Bandwidth Estimator
Approximate signal bandwidth from resolution, frame rate, and bit depth.
Cable Run Planner
How many repeaters or breaks you need across a long signal run.
LED Wall Power Load
Estimate average and peak power for an LED wall from area and panel density.
Hanging Weight Estimator
Total flying weight from panel count, frame, and rigging extras.
Camera Framing / Screen Fill
How much of the frame a screen occupies from screen width and camera coverage width.
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Browse all tools ↗02 / ABOUT
About Daradu
Daradu is where I publish the tools and software I build.
I’m Dara, based in Dungarvan, Waterford. The site currently includes calculators for lighting, audio, video and rigging, plus Fixture Studio for building Vista fixture profiles.
Contact Dara ↗FEEDBACK
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If there’s a tool you’d find useful, send me the details.
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