About CalcCrate

CalcCrate is a fast, free library of online calculators for finance, construction, and everyday math. No accounts. No paywalls. Just clean answers.

What you’ll find

• Finance calculators: mortgage payment, commission calculator, ROI, break-even, sales tax, discounts.

• Construction & engineering math: concrete volume, board feet, roof pitch, area/volume, unit conversions (US/metric).

• Everyday tools: tip calculator, percentage change, split the bill, time duration.

Why people use it

• Accurate & transparent: We show formulas, assumptions, and examples on each tool.

• Fast on any device: Lightweight pages with simple forms.

• Privacy-first: No login; most preferences stay in your browser.

• Free forever: Supported by tasteful ads (and the occasional affiliate link).

Our promise

We sweat the math so you don’t have to. Still—results are informational only. Double-check anything business-critical or safety-critical.