Soldering Calculator

Calculate solder wire consumption, flux needs, and recommended tip temperature for your soldering project.

Solder Wire Needed
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grams (with waste)
Wire Length Needed
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meters
Estimated Cost
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Recommended Tip Temp
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Melting Point
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Flux Type
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Solder per Joint
--
grams
Tips
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Soldering Reference Guide

Solder Alloy Comparison

  • 63/37 (Eutectic): Melts at 183C (361F). Sharp melting point, shiny joints. Industry standard for electronics.
  • SAC305 (Lead-Free): Melts at 217-220C (423-428F). RoHS compliant. Slightly higher tip temps needed.
  • Silver Solder: Much higher melting point (600-750C). Used for jewelry, HVAC, and high-strength joints.

Flux Types

  • Rosin (R/RMA): Mild, non-corrosive. Standard for electronics. No cleaning needed for RMA.
  • Water-Soluble (OA): More active. Must be cleaned after soldering. Good for oxidized surfaces.
  • No-Clean: Leaves benign residue. Most popular for production electronics.
  • Acid Flux: For plumbing and sheet metal. Never use on electronics.

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