The tools I tested
LayerMath (layermath.com)
The most feature-rich calculator I found. Covers material, electricity (including heat-up phase), labour, depreciation, failure rate, platform fees for Etsy/eBay/Amazon, VAT, G-code import, multi-material rows, and country-aware shipping. Some features are locked behind a Pro tier, but the free version is solid. If you want a manual calculator that does everything, this is the one to beat.
OmniCalculator (omnicalculator.com)
Clean and simple. Covers the basics: material, electricity, and gives you a quick estimate. No platform fees, no shipping, no depreciation. Good for a quick sanity check, not for serious pricing.
