How do you calculate cylinder loss reserve rate?

Divide missing or written-off cylinders by the total cylinders at risk and multiply by 100. With 38 cylinders lost out of 1,200 at risk, the rate is 3.17%.

What is a good cylinder loss rate?

Distributors typically target low single digits annually — often 2% to 4% depending on tracking systems and customer mix. The 3.17% here sits just above a 3% target, a 0.17-point gap that flags slightly elevated loss.

What does the gap to target mean?

It is your actual rate minus your target, in percentage points. A negative gap means you are above target loss; here 3.17% against a 3% target gives -0.17 points, indicating loss is running marginally hot.

Which cylinders count as at risk?

The population you are reserving against — typically cylinders out in the field or otherwise exposed to loss during the period, not retired or scrapped assets. Define it consistently so the rate is comparable across periods.

Why hold a cylinder loss reserve at all?

Cylinders are durable assets carried on the books, and a predictable share never returns. A reserve spreads that expected write-off smoothly rather than letting it shock earnings when a physical count is reconciled.

How can I lower the loss rate?

Barcode or RFID tracking, cylinder deposits, demurrage that incentivizes returns, and routine customer-site audits all pull the rate down. Each missing cylinder you recover moves the numerator and tightens the gap to target.

Industrial Gases & Cryogenic Systems calculator

Cylinder loss reserve Calculator

Cylinder loss reserve rate measures what fraction of a gas distributor's cylinder fleet goes missing or is written off, so finance can set an accurate reserve and operations can see asset shrinkage. Gas company controllers and asset managers use it to provision for unrecoverable cylinders and to benchmark loss against a target rate. It matters because high-pressure and cryogenic cylinders are expensive durable assets that ride out into the field for years; uncontrolled loss quietly drains the balance sheet and inflates the cost of every fill. Tracking the rate against a target turns scattered write-offs into a managed reserve and an early warning on tracking discipline.

What this calculator does

Calculate cylinder loss reserve percentage from cylinders missing or written off, total cylinders at risk, and target loss reserve rate.
Use it when estimating reserve for lost cylinders, customer-held assets, unreturned cylinders, damaged cylinders, or write-offs.
It computes the cylinder loss reserve rate as missing or written-off cylinders divided by the total fleet at risk, and the gap in points between that rate and your target.

Formula used

Cylinder loss reserve rate = missing or written-off cylinders ÷ total cylinders at risk × 100
Cylinder loss reserve gap to target = cylinder loss reserve rate - target cylinder loss reserve rate

Inputs explained

Missing or written-off cylinders:
Total cylinders at risk:
Target cylinder loss reserve rate:

How to use the result

Use it at period close to set or true-up a cylinder loss reserve, and to check whether actual shrinkage is running over or under your target loss rate.
It is a point-in-time ratio on the population you define as at risk; it does not distinguish recoverable from permanently lost cylinders, nor account for replacement cost differences between cylinder types.

Current U.S. benchmarks

Global copper trades at $13,484 per tonne (IMF via FRED, May 2026), up 41.5% in a year, and U.S. industrial electricity averages 8.66 cents per kWh. Both feed electrified-hardware unit economics.

Common questions

How do you calculate cylinder loss reserve rate? Divide missing or written-off cylinders by the total cylinders at risk and multiply by 100. With 38 cylinders lost out of 1,200 at risk, the rate is 3.17%.
What is a good cylinder loss rate? Distributors typically target low single digits annually — often 2% to 4% depending on tracking systems and customer mix. The 3.17% here sits just above a 3% target, a 0.17-point gap that flags slightly elevated loss.
What does the gap to target mean? It is your actual rate minus your target, in percentage points. A negative gap means you are above target loss; here 3.17% against a 3% target gives -0.17 points, indicating loss is running marginally hot.
Which cylinders count as at risk? The population you are reserving against — typically cylinders out in the field or otherwise exposed to loss during the period, not retired or scrapped assets. Define it consistently so the rate is comparable across periods.
Why hold a cylinder loss reserve at all? Cylinders are durable assets carried on the books, and a predictable share never returns. A reserve spreads that expected write-off smoothly rather than letting it shock earnings when a physical count is reconciled.

Last reviewed 2026-05-12.