Free calculators for architects
Small tools for the arithmetic that interrupts real work. No sign-up, no email, nothing uploaded — every calculation runs in your browser.
Drawing Scale Converter
Real dimension to drawing dimension, or back again, at any scale.
Open the calculatorRender Print Size Calculator
Will this render survive an A1 board? Find out before the print shop tells you.
Open the calculatorRendering Cost Calculator
What a year of renders actually costs you — and what the alternatives cost.
Open the calculatorThese are side tools. The main one turns a photo, sketch or CAD viewport into a photorealistic render in about 30 seconds — see exterior, interior or floor plan rendering.