Connected review
Review Pack
Bring supported files, source-linked attention items, coverage limits, reviewer notes and the final advisory summary into one job record.
See the Review PackResources · free working tools
Free survey working tools.
Use these browser-based resources for one bounded calculation or check. Every tool shows its working and cites the reference it uses. When the job needs multiple files, source trace, reviewer decisions and an advisory handoff, use the Review Pack instead.
Single working aid
One task at a time
Use a tool for an isolated calculation, format check or metadata comparison. Tool results stay separate from the connected Review Pack and remain advisory.
Eight existing resources · no new calculators
Choose the smallest tool that fits the task.
Review-aligned checks appear alongside calculation references, but none replaces the source trace or professional judgement in a completed-job review.
Calculation reference
COGO Calculator — Bearing, Distance & Area
Join, radiate and polygon area from grid coordinates, with the full working shown for every step — including the grid-vs-ground area note. Free advisory working aid.
Calculation reference
Grid ↔ Ground Converter — Combined Scale Factor
Point and line scale factor, height factor and combined scale factor for MGA2020 — convert grid and ground distances both ways with the full working shown.
Calculation reference
Traverse Misclose Checker
Linear and angular misclose, relative precision and an advisory Bowditch comparison. Tolerance guidelines are read from loaded advisory rule packs, never hardcoded.
Calculation reference
Level Loop Closure Checker
Loop misclose against a project-selected C√K guideline grouping, with advisory distribution and the full working shown; no survey order or jurisdiction is inferred.
Review workflow aid
Point File Validator
Advisory duplicate-id, coincident-point, easting/northing-order and zone-extent checks with browser-local parsing and a bundled fictional example.
Calculation reference
Coordinate & Datum Converter — MGA2020
Geographic ↔ MGA2020 grid with zone, point scale factor and grid convergence shown, explicit GDA94 lineage and method selection, and a copyable method statement for every result.
Review workflow aid
Deliverable Checklist Generator
A printable, per-state checklist of questions to ask before a survey package leaves the office. Advisory prompts only — it never decides anything for you.
Review workflow aid
Datum & Metadata Quick-Check
Paste header blocks from project files to compare datum, zone, geoid and epoch declarations in one consistency table. Advisory — confirm against the source files.
Every result on these pages is advisory and unverified — not for survey deliverables. Tools compute from the inputs you provide and show their working, and where a guideline applies they only ever say “within guideline” or “exceeds guideline — review”. Registered surveyor confirmation required before reliance.
Safety & scope
SurveyMarkup helps prepare and review working information. Every professional decision remains with the registered surveyor, and original data and final outputs require qualified review.
Assistance only - professional review remains required.