How do you calculate recycled content percentage?

Divide recycled material mass by total material mass and multiply by 100. With 3,200 kg of recycled material in 9,600 kg of total material, recycled content is 33.33%.

What is a good recycled content percentage?

It depends on the mandate — many packaging targets sit at 30-50% recycled content, and some regulations are climbing toward higher floors. In the worked example 33.33% misses a 35% target by 1.67 points, which is the small reformulation gap to close.

Is recycled content measured by mass or volume?

By mass. Standards and claims are stated as a percentage of total weight, which is why both inputs are in kilograms — mixing a volume basis in will produce a number you cannot defend in an audit.

Does this distinguish post-consumer from pre-consumer content?

No. It gives total recycled mass fraction. Many certifications weight or require post-consumer recycled (PCR) content specifically, so check which type your standard demands before claiming the percentage.

What does the gap to target tell me?

It is your actual content minus the target in percentage points — here 33.33% minus 35% is a 1.67-point shortfall. A negative gap means reformulate to add recycled feedstock; a positive gap means you are clearing the target with headroom.

How do I increase recycled content percentage?

Add recycled feedstock mass or displace virgin material, keeping performance specs in mind. Lifting the recycled component from 3,200 kg to about 3,360 kg in the same 9,600 kg blend would clear the 35% target.

Circular Economy, Recycling & Remanufacturing calculator

Recycled Content Percentage Calculator

Recycled content percentage is the share of a product or material blend, by mass, that comes from recycled feedstock rather than virgin material, plus the gap between where you are and your target. Sustainability engineers, packaging developers, and procurement teams use it to substantiate recycled-content claims, hit regulatory or customer mandates, and steer blend formulation. It matters because recycled-content commitments are increasingly audited and legally enforceable — overstating by even a couple of points invites greenwashing exposure, while understating leaves credible sustainability marketing on the table. Getting the mass basis right is the whole game.

What this calculator does

Calculate recycled content in a product, batch, or material blend against a customer, regulatory, or internal target.
a team needs to verify claims, qualify materials, or adjust blend recipes for a product bill, batch, or material declaration
It computes recycled content as recycled material mass divided by total material mass times 100, and reports the point gap to your target.

Formula used

Recycled Content Percentage = recycled material in the product or blend ÷ total product or blend material × 100
Recycled Content Percentage gap to target = actual result - target recycled content

Inputs explained

Recycled material in the product or blend:
Total product or blend material:
Target recycled content:

How to use the result

Use it when formulating a blend to a recycled-content spec, substantiating a product claim, or tracking progress against a sustainability or regulatory target.
It measures mass fraction only — it does not distinguish pre-consumer from post-consumer recycled content, which many standards weight differently, so a passing percentage may still fail a standard that requires post-consumer material.

Common questions

How do you calculate recycled content percentage? Divide recycled material mass by total material mass and multiply by 100. With 3,200 kg of recycled material in 9,600 kg of total material, recycled content is 33.33%.
What is a good recycled content percentage? It depends on the mandate — many packaging targets sit at 30-50% recycled content, and some regulations are climbing toward higher floors. In the worked example 33.33% misses a 35% target by 1.67 points, which is the small reformulation gap to close.
Is recycled content measured by mass or volume? By mass. Standards and claims are stated as a percentage of total weight, which is why both inputs are in kilograms — mixing a volume basis in will produce a number you cannot defend in an audit.
Does this distinguish post-consumer from pre-consumer content? No. It gives total recycled mass fraction. Many certifications weight or require post-consumer recycled (PCR) content specifically, so check which type your standard demands before claiming the percentage.
What does the gap to target tell me? It is your actual content minus the target in percentage points — here 33.33% minus 35% is a 1.67-point shortfall. A negative gap means reformulate to add recycled feedstock; a positive gap means you are clearing the target with headroom.

Last reviewed 2026-05-12.