Constant Voltage LED Strip Calculator

〰️ Constant Voltage Design Tool

LED Strip Calculator

Calculate voltage drop, power injection points, and driver sizing for any constant voltage LED strip installation. The hero metric: voltage at the far end of your run.

Strip type presets
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Strip Specification
System Voltage (V)
Power per Metre (W/m)
From strip datasheet or preset
Strip Copper Weight
Higher oz = less voltage drop
Max Voltage Drop Target
📐
Installation Dimensions
Total Strip Length (m)
Feed Wire Length (m)
Distance from driver to strip start
Feed Wire Gauge
Ambient Temperature (°C)
Driver/strip location temperature
Recommended LED driver
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Voltage drop at strip end
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—%
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0%3%5%8%10%+
Total Load
—
watts
Total Current
—
amps
Max Continuous Run
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metres
Injection Points
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mid-run
Strip layout diagram
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Power injection schedule
12V vs 24V — why voltage matters
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Recommended action
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.