Survey Formula Rearranger Practice
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
Practice question
Generating a question…
How to use this calculator
- Read the equation and which variable to make the subject.
- Rearrange it yourself, then Reveal to check the transposed form.
- Press New question for another common survey formula.
How it works
Transposing (rearranging) formulas is a core surveying-maths skill — you constantly need to solve a known equation for a different variable.
The generator picks common survey relationships (speed, area, grade, horizontal distance, scale) and asks you to make a chosen variable the subject, then shows the answer.
Frequently asked questions
Does it solve numbers?
No — this practises the algebra of rearranging the formula itself. Once you can transpose it, the atomic calculators on Zerdly handle the numbers.
Is this official course material?
No. It is free study support mapped to surveying course levels — not official North Metropolitan TAFE content or advice. Always follow your lecturer and the official assessment brief, and check your own working.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.