REBA Ergonomic Score Calculator

Work out reba ergonomic score instantly with clear inputs, formula shown and shareable results.

About REBA Ergonomic Score Calculator

REBA extends postural assessment to the whole body. Trunk, neck and legs form group A, uplifted for load or force; arms and wrists form group B. The two are combined and an activity score is added for static holding, repetition or rapid changes, giving a final score from one to fifteen mapped to five risk levels.

Formulas

REBA structure

Score A = trunk, neck and legs + load; score B = arms and wrists; combined score + activity score = REBA

Risk levels

1 negligible, 2-3 low, 4-7 medium, 8-10 high, 11+ very high

Worked example

With the default values below, REBA Ergonomic Score Calculator returns REBA score of 6. Change any input above and every figure here is recalculated in your browser.

Inputs used

Trunk, neck and leg scoreaccepts 1–9: 4
Arm and wrist scoreaccepts 1–9: 3
Load or force scoreaccepts 0–3: 1
Activity scoreaccepts 0–3: 1

Results

REBA score: 6
Risk level: Medium risk
Action required: Further investigation, change soon
Sum of component scores: 9

Step by step

1Values used
2REBA structure
3Risk levels
4REBA score= 6
5Risk level= Medium risk
6Action required= Further investigation, change soon
7Sum of component scores= 9

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Preliminary estimate only. Postural assessment should be carried out by a trained assessor using the full REBA worksheet over a representative task cycle.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Preliminary estimate only. Postural assessment should be carried out by a trained assessor using the full REBA worksheet over a representative task cycle.

Frequently Asked Questions

How is the REBA Ergonomic Score figure worked out?

Score A = trunk, neck and legs + load; score B = arms and wrists; combined score + activity score = REBA. REBA extends postural assessment to the whole body.

When should REBA be used rather than RULA?

Where the legs and whole body posture matter: manual handling, patient transfers, construction and any task involving unstable footing or a wide range of postures.

What values do I need to enter?

This calculator takes 4 inputs: Trunk, neck and leg score, Arm and wrist score, Load or force score, Activity score. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.