About CalcMade

CalcMade provides free, accurate online calculators for construction projects, retirement planning, and tax calculations.

Our Approach

Every calculator on this site is built with transparency in mind. We show our formulas, cite our sources, and include methodology notes so you can verify the math yourself.

Accuracy

Our calculations are based on industry-standard formulas and current data. Tax calculators reference IRS publications and are updated for the current tax year. Construction calculators use standard material densities and current retail pricing.

While we strive for accuracy, these tools provide estimates only. Always consult a qualified professional for financial, tax, or construction decisions.