Science.
High-precision engineering and physics calculators. Density, thermal expansion, stress analysis, and unit conversion — all verified against NIST, ISO, and ASTM benchmarks.
Mass Lab — Density Calculator
Calculate ρ = m/V with material presets for Aluminum, Steel, Gold, Water, Concrete, Titanium, and Copper. Outputs in kg/m³ with NIST material library verification. Calibrated at STP.
Thermal Expansion Lab
Calculate ΔL = L₀·α·ΔT for Steel, Aluminum, Copper, and Glass. Presets for common thermal coefficients with final length and expansion delta output for engineering design decisions.
Stress Analysis Forge
Compute σ=F/A (stress in MPa), ε=σ/E (strain), and safety factor vs yield strength for 6 materials. Color-coded safety indicators — green ≥ 2×, amber marginal, red over-yield.
Unit Exchange
Any-to-any conversion across Length, Mass, Area, Volume, and Temperature. Live formula display, category pill selector, and BIPM 2019 SI-standard constants for zero-drift accuracy.