Calculily
Free, fast, and accurate online calculators for all your needs
Construction Calculators
All Construction Calculators
40+ calculators for concrete, roofing, decking, and more
Concrete Calculator
Calculate cubic yards for slabs, footings, and more
Roofing Calculator
Calculate shingles, underlayment, and roofing materials
Deck Board Calculator
Calculate deck boards with optimized layouts
Tile Calculator
Calculate tiles, grout, and thinset needed
Mulch Calculator
Calculate cubic yards of mulch for landscaping
Stud Calculator
Calculate wall studs, plates, and headers
Gravel Calculator
Calculate gravel for driveways and paths
Electrical & Engineering
Wire Gauge Calculator
Calculate proper wire gauge for electrical runs
Voltage Drop Calculator
Calculate voltage drop over distance
LED Power Calculator
Calculate power requirements for LED strips
Amp Draw Calculator
Calculate total amperage for electrical circuits
Circuit Breaker Sizing
Determine correct circuit breaker size
Battery Runtime Calculator
Calculate how long a battery will last
Solar Panel Calculator
Size solar array for your power needs
Math & Conversions
Etsy Seller Tools
Complete Etsy Tools Hub
All Etsy calculators: fees, shipping, and profit
Etsy Fee Calculator
Calculate all Etsy fees including offsite ads
Etsy Shipping Calculator
Compare carrier rates and optimize shipping
Etsy Profit Calculator
Calculate true profit after all costs
Etsy Pricing Calculator
Price your handmade products profitably