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MEASURE ONCE. PLAN YOUR PURCHASE.

Two Point Measurement Correction calculator.

Apply a supplied two-point linear scale correction to a measured length and identify interpolation versus extrapolation.

MEASUREMENT

Your inputs

Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.

YOUR ESTIMATE
∑

A clear estimate starts here.

Enter your dimensions and product details to see the quantity and purchase breakdown.

CONTINUE YOUR PLAN

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Formula and assumptions
BEHIND THE NUMBERS

How this calculation works.

Apply a supplied two-point linear scale correction to a measured length and identify interpolation versus extrapolation. Entered linear correction only; no measurement certification, instrument calibration procedure or acceptance tolerance.

Corrected length = actual A + (reading − reading A) × (actual B − actual A)/(reading B − reading A).Calculated with normalised units

A worked example

Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.

First indicated reference length
1 m
First known reference length
1.1 m
Second indicated reference length
3 m
Second known reference length
3.3 m
Indicated length to translate
2 m

Length under supplied linear correction: 2.2 m

This reading is between the two references: the correction interpolates and assumes linearity. No calibration accuracy is certified.

Before you purchase

Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.

Entered linear correction only; no measurement certification, instrument calibration procedure or acceptance tolerance.

Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.

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