Diversion Rate Calculator
Your diversion rate is the share of everything you threw away that never reached a landfill: recycling, composting, reuse and other recovery, divided by all the waste you generated. Enter each stream below in the unit you already track, add an optional target, and you get the rate, a stream-by-stream breakdown, a benchmark for the number, and the exact extra weight you need to divert to hit your goal.
Other recovery includes anaerobic digestion and energy recovery where your program counts it. Hazardous waste is tracked separately and excluded here.
Quick Answer
Key takeaways
- The denominator is everything: diverted weight plus landfill weight, same period, same unit. A missing trash stream inflates the rate.
- Stream-level entry beats a single diverted total, because the breakdown shows which stream to grow next.
- Benchmarks that matter: 32.1% is the US recycling-plus-composting rate in EPA figures, 50% is a strong-program target, and 90% is the zero-waste threshold.
- A goal is only useful with a gap attached. This tool converts your target into the extra tons, pounds or kilograms still to divert.
- Quick Answer
- How to use this diversion rate calculator
- The diversion rate formula, term by term
- Worked example: one school month, checked against the tool
- What counts as diverted, and what does not
- Benchmarks: is your diversion rate actually good?
- Running a waste audit that feeds this calculator
- What competing calculators miss
- Frequently Asked Questions
- Add This Calculator to Your Website
How to use this diversion rate calculator
Pick one unit, enter each stream for the same period, and click Calculate. That is the whole workflow, and the order matters less than consistency: every weight has to cover the same days and the same site.
Start with the unit your records already use. If your hauler reports in tons, stay in tons; converting mid-audit is how pounds and tons end up added together. Then enter recycling, composting, reuse and other recovery as separate streams, even if one of them is zero. A zero you typed is information. A stream you skipped is a hole in the denominator. Finish with the landfill weight from the same period, set a target if you have one, and read the result in three parts: the headline rate, the stream breakdown, and the goal gap. If you run a deposit scheme, returned containers belong in the recycled or reused stream; a bottle return calculator helps you value that stream on its own before you fold it into the totals here.
The diversion rate formula, term by term
Diversion rate = (diverted waste / total waste) x 100. Diverted waste is the sum of the four recovery streams. Total waste is that sum plus the landfill stream. Nothing else hides inside the formula.
All weights in the same unit, over the same period. The US Environmental Protection Agency uses the same diverted-over-total structure for its national recycling measurement work, described in its national overview of facts and figures on materials and waste.
Two habits keep the formula honest. First, weigh, do not estimate by volume: a cubic yard of loose cardboard and a cubic yard of food waste have almost nothing in common, so volume conversions quietly distort both sides of the fraction. Second, never average a set of monthly rates to get an annual rate. Months with more waste should count for more, so add the twelve months of weights first and divide once at the end. If you have been handed a pile of monthly percentages instead, our guide to averaging percentages correctly shows why the simple average misleads and how weighting fixes it.
Worked example: one school month, checked against the tool
A school tracks one month in pounds: recycled 4,000, composted 1,500, reused or donated 500, other recovery 500, landfill 3,500. Those are the pre-filled values above, so you can reproduce every number here in one click.
Diverted = 4,000 + 1,500 + 500 + 500 = 6,500 lb. Total = 6,500 + 3,500 = 10,000 lb. Diversion rate = 6,500 / 10,000 x 100 = 65.00%, with a landfill share of 35.00%. The stream shares are 40.0% recycled, 15.0% composted, 5.0% reused, 5.0% other recovery and 35.0% landfill. With the 75% goal set, the gap is 0.75 x 10,000 minus 6,500 = 1,000.00 lb still to divert.
Read the bars the way a facilities manager would. Recycling is doing the heavy lifting, composting is a solid second stream, and the landfill bar is still the second-biggest slice on the page. The fastest route to 75% for this school is not a new recycling poster. It is finding roughly 1,000 lb inside that landfill bar, most likely food scraps that could move to the compost stream.
What counts as diverted, and what does not
Diverted means kept out of landfill through recycling, composting, reuse, donation or recovery. Disposal dressed up as recovery does not count, and the borderline cases are where reported rates go wrong.
Programs generally count paper, cardboard, glass, metal and plastic recycling; food and yard-waste composting; donations and direct reuse; and anaerobic digestion of organics. The EPA’s sustainable materials management basics set out the same hierarchy: source reduction and reuse sit above recycling, and recycling sits above energy recovery and disposal. What usually does not count: plain incineration without energy recovery, which is disposal; litter; and hazardous waste, which follows separate handling rules and stays out of both sides of this calculation. Waste-to-energy is the genuine grey area. Some programs count certified energy recovery as diversion and some do not, which is why this calculator keeps it in an explicit Other recovery field instead of burying it inside recycling. Definitions vary by city, state and certifier, so check what your reporting program counts before you publish a number.
Benchmarks: is your diversion rate actually good?
A rate means little without a yardstick. Three reference points cover most conversations: the national average, a strong-program target, and the zero-waste line.
| Your rate | Verdict | How to read it |
|---|---|---|
| 90% or more | Zero-waste level | Meets the Zero Waste International Alliance definition of zero waste: at least 90% diverted from landfill and incineration. |
| 50% to 89.9% | Strong program | Above the bar many municipal and corporate programs set for themselves. The remaining gains usually sit in organics and reuse. |
| 32.1% to 49.9% | Around average | At or above the US national recycling-plus-composting rate of 32.1% reported by the EPA for 2018. Respectable, with clear headroom. |
| Below 32.1% | Below average | Under the national figure. Start with a waste audit: the biggest recoverable stream is usually hiding inside the trash. |
Context still matters. A restaurant heavy on food waste can post a high rate through composting alone, while a machine shop with oily scrap faces a harder mix. Compare your rate with your own previous quarters first and with peer facilities second. When you report progress, report the percentage-point move as well as the new rate: going from 40% to 65% is a 25-point gain, and our percent change calculator keeps that separate from the 62.5% relative increase, two numbers reports routinely mix up.
Running a waste audit that feeds this calculator
A good rate starts with a boring, careful audit. Pick a representative period, weigh every stream on the same scale, and write the numbers down daily instead of reconstructing them later.
One typical week for a small business, one full month for a school or office. Avoid event weeks and holidays unless events are the thing you are measuring.
Recycling, compost, reuse, other recovery and trash, on the same scale and in the same unit. Hauler scale tickets work well for the landfill stream.
Loading-dock dumpsters, back-of-house bins and one-off clearouts are the classic unweighed streams. If it left the site as waste, it belongs in the totals.
Add the daily figures, run this calculator, and repeat the audit quarterly. A trend line across four audits tells you far more than any single rate.
California’s program guidance is a useful model for measurement discipline: CalRecycle’s disposal rate measurement pages show how a whole state tracks diversion through per-capita disposal rather than trusting one-off estimates. You do not need state-level machinery. You need the same weights, the same period and the same definitions every time.
What competing calculators miss
Most diversion rate calculators ask for two numbers, total waste and diverted waste, and hand back a percentage. That works only if someone has already done the stream accounting for you, and it teaches you nothing about where the rate comes from.
Three gaps show up again and again. First, a two-box tool cannot tell you which stream to grow, because it never sees the streams. Second, several tools fix the unit in pounds or tons with no selector, so half their users are converting by hand before they start. Third, almost none benchmark the result or convert a target into work still to do. This page takes the five streams separately so the denominator always balances, lets you work in tons, pounds or kilograms, benchmarks the result against the EPA national figure and common program targets, and turns a goal into a concrete gap: the extra weight to divert, in your unit, not a vague encouragement to try harder.
Frequently Asked Questions
Recycling rate counts only material sent for recycling. Diversion rate is broader: recycling plus composting, reuse, donations and other recovery. A program with heavy composting can have a much higher diversion rate than recycling rate.
Context matters. The US national recycling-plus-composting rate was 32.1% in EPA 2018 figures. Many strong municipal and corporate programs target 50% or more, and the Zero Waste International Alliance defines zero waste as 90% or greater diversion. The tool benchmarks your result against all three.
Yes. Composted food scraps and yard waste are diverted from landfill and count in every standard definition of the metric. For many sites, organics are the single biggest divertible stream still sitting in the trash.
No. Hazardous waste follows separate handling and reporting rules. Keep it out of both the diverted total and the landfill total here, and track it under your hazardous waste program instead.
Not with consistent measurement. If your rate exceeds 100%, the total is missing a stream, usually unweighed trash, or the units are mixed. Fix the inputs and it will drop back under 100%.
Monthly or quarterly for ongoing programs, so you can see trends and seasonal swings. For events, calculate once per event and compare year over year, using the same definitions each time.
The usual cause is an incomplete denominator: trash streams that were never weighed, which makes earlier estimates look generous by comparison. Weigh everything for one audit week and recalculate. A lower honest number is worth more than a higher invented one.
Plain incineration is disposal, not diversion. Some programs count waste-to-energy with certified energy recovery; check your local definition before including it, and if you do count it, enter it under Other recovery so the choice stays visible.
Add This Calculator to Your Website
References
- US Environmental Protection Agency, “National Overview: Facts and Figures on Materials, Wastes and Recycling” – national generation, recycling and composting figures, including the 32.1% recycling-plus-composting rate used for the benchmark. EPA: Facts and Figures About Materials, Waste and Recycling. Accessed October 2026.
- US Environmental Protection Agency, “Sustainable Materials Management Basics” – the materials hierarchy that places source reduction and reuse above recycling, and recycling above energy recovery and disposal. EPA: Sustainable Materials Management Basics. Accessed October 2026.
- US Environmental Protection Agency, “Composting at Home” – what food scraps and yard waste can be composted, supporting the composted stream in this calculator. EPA: Composting at Home. Accessed October 2026.
- CalRecycle, “Disposal Rate Measurement” – how California measures diversion through disposal rates, a model for consistent period-over-period waste measurement. CalRecycle: Disposal Rate Measurement. Accessed October 2026.
- Zero Waste International Alliance, “Zero Waste Definition” – the peer-reviewed definition of zero waste as 90% or greater diversion from landfill and incineration. Zero Waste International Alliance: Zero Waste Definition. Accessed October 2026.
- US Environmental Protection Agency, “Waste Reduction Model (WARM)” – how diverting materials changes energy and emissions outcomes, background for why stream-level diversion is tracked at all. EPA: Waste Reduction Model. Accessed October 2026.