All Tools

Feet ⇄ Meters Converter Instantly convert between feet, meters, inches, and centimeters. Paint Needed Calculator Estimate gallons of paint required by area, coats, and coverage. Board Feet Calculator Compute board feet from thickness, width, and length. Shipping Dimensional Weight Calculator Calculate billable weight for air or ground using divisors. Bicycle Gear Inches Calculator Compute gear inches from chainring, cog, and wheel size. Room AC BTU Calculator Estimate cooling capacity needed by room size and exposure. Paint Needed Calculator (v1) Estimate gallons of paint required by area, coats, and coverage. Board Feet Calculator (v2) Compute board feet from thickness, width, and length. Shipping Dimensional Weight Calculator (v3) Calculate billable weight for air or ground using divisors. Bicycle Gear Inches Calculator (v4) Compute gear inches from chainring, cog, and wheel size. Room AC BTU Calculator (v5) Estimate cooling capacity needed by room size and exposure. Feet ⇄ Meters Converter (v6) Instantly convert between feet, meters, inches, and centimeters. meters to feet Converter Quick utility for meters to feet converter. inches to centimeters Converter Quick utility for inches to centimeters converter. centimeters to inches Converter Quick utility for centimeters to inches converter. Board Feet Calculator (2in x 6in x 8ft) Quick utility for board feet calculator (2in x 6in x 8ft). Board Feet Calculator (1in x 4in x 8ft) Quick utility for board feet calculator (1in x 4in x 8ft). Board Feet Calculator (1in x 6in x 10ft) Quick utility for board feet calculator (1in x 6in x 10ft). Board Feet Calculator (1in x 8in x 6ft) Quick utility for board feet calculator (1in x 8in x 6ft). Filament Length from Spool Weight (1.75mm, PETG) Quick utility for filament length from spool weight (1.75mm, petg). Filament Length from Spool Weight (2.85mm, PLA) Quick utility for filament length from spool weight (2.85mm, pla). Filament Length from Spool Weight (1.75mm, PLA) Quick utility for filament length from spool weight (1.75mm, pla). Dimensional Weight Calculator (Ground (166 divisor)) Quick utility for dimensional weight calculator (ground (166 divisor)). Dimensional Weight Calculator (Air (139 divisor)) Quick utility for dimensional weight calculator (air (139 divisor)). Percent Calculator for Discounts & Markups Quick utility for percent calculator for discounts & markups. Cut‑List Optimizer (1D) Best‑fit cut plan for lumber with kerf and waste. Box‑Fit & Rotation Planner Find which boxes fit and compute DIM weight. Tile & Flooring Planner Coverage, cuts, and suggested boxes with waste. Batch Unit Converter Convert dozens of values in one go. 3D Print Spool Manager Track remaining grams and length per spool (local only). PC Airflow & PSU Estimator Quick airflow sufficiency check and PSU headroom. Sheet Optimizer (2D) Kerf-aware cut planner for sheet goods with visual layout. Project Quote & BOM Builder Paste items, taxes, markup—get a clean quote & CSV export.