Utilisation rate is the single most important metric in the equipment rental industry. It tells you how much of your fleet is actually earning revenue versus sitting idle in the warehouse. Yet many rental companies either do not measure utilisation at all, or measure it in ways that give a misleading picture of performance.
This guide explains how to calculate utilisation correctly, what the industry benchmarks are, and — most importantly — what practical steps you can take to improve your numbers.
Understanding utilisation rate
At its simplest, utilisation rate measures the proportion of time that equipment is generating revenue. The basic formula is:
Utilisation Rate = (Time on Rent / Time Available) x 100
If a piece of equipment was available for 30 days in a month and was on rent for 21 of those days, its time utilisation rate is 70%.
However, this simple formula only tells part of the story. There are two distinct types of utilisation that rental companies should track, and understanding the difference is essential.
Time utilisation vs financial utilisation
Time utilisation (also called physical utilisation) measures the percentage of available time that equipment is on rent. It answers the question: how much of the time is this asset actually out working?
Financial utilisation (also called dollar utilisation) measures the revenue generated as a percentage of the equipment's original cost. It answers a different question: how effectively is this asset generating a return on the capital invested in it?
The distinction matters because time utilisation can be misleading on its own. An asset might be on rent 80% of the time, which looks excellent — but if the rental rate has been heavily discounted to achieve that utilisation, the financial return may be poor. Conversely, a specialist piece of equipment might only be on rent 30% of the time, but at a premium rate that delivers strong financial utilisation.
Both metrics are valuable. Time utilisation tells you about operational efficiency. Financial utilisation tells you about return on investment. Monitoring both gives you a complete picture.
Industry benchmarks
Utilisation benchmarks vary significantly depending on the type of rental business and the equipment category. Published industry data provides useful reference points:
- Large national rental chains: The American Rental Association and industry analysts report that large general rental companies typically achieve dollar utilisation rates around 65%. This lower figure reflects the breadth of inventory they carry, including specialist items that rent infrequently.
- Smaller general rental centres: Smaller operations with tightly managed inventories can achieve dollar utilisation of 100% or more, meaning they generate revenue equal to or exceeding the original cost of the equipment within a year.
- Party and event rental stores: Party rental businesses often achieve dollar utilisation rates of up to 150%, driven by the high frequency of short-term rentals and relatively low equipment costs.
- Time utilisation target: A commonly cited fleet target for time utilisation is around 75%. Achieving higher than this consistently suggests you may not have enough equipment to meet demand, while significantly lower figures indicate overstocking or poor demand planning.
These benchmarks are guidelines, not targets. Your optimal utilisation rate depends on your market, your equipment mix, and your pricing strategy.
How to improve utilisation
Improving utilisation is not simply about renting equipment out more often. It requires a combination of data analysis, operational changes, and strategic decisions.
Monitor underperformers
Start by identifying the equipment that is consistently underperforming. Any asset with utilisation below 50% over a sustained period deserves scrutiny. Ask why it is underperforming:
- Is demand for this type of equipment declining?
- Is it priced too high relative to alternatives?
- Is it frequently in maintenance or repair, reducing its available days?
- Is it stored at a location where demand is low?
- Has it been superseded by newer technology that clients prefer?
Once you understand the cause, you can act — adjust pricing, relocate the asset, increase marketing, or retire it and reinvest the capital in higher-demand equipment.
Preventive maintenance reduces downtime
Unplanned maintenance is one of the biggest threats to utilisation. When equipment breaks down unexpectedly, it can be out of service for days or even weeks while parts are sourced and repairs are completed. During that entire time, the asset is generating zero revenue but still depreciating.
Preventive maintenance — scheduled servicing based on hours of use, rental cycles, or calendar intervals — catches problems before they become breakdowns. A well-maintained asset spends more time available for rent and less time in the workshop. The cost of preventive maintenance is almost always lower than the cost of emergency repairs plus the lost revenue from downtime.
Track missed rentals
Utilisation data on its own can be misleading without context. An asset showing 85% utilisation looks like a strong performer. But what if your booking team turned away three rental requests for that item in the same period because it was unavailable?
Missed rentals — bookings you could not fulfil because the equipment was already on hire — are the invisible counterpart to utilisation. High utilisation combined with frequent missed rentals is a clear signal that you need more of that item. You are leaving revenue on the table.
Tracking missed rentals requires discipline. Your booking team needs to log every enquiry they cannot fulfil, including what was requested, when, and why it was unavailable. This data, paired with utilisation figures, gives you a much more accurate picture of demand.
Relocate idle assets between locations
For multi-warehouse operations, utilisation can vary significantly by location. A lighting rig sitting idle in your Manchester warehouse might be in high demand at your London depot. Without visibility across locations, these imbalances go unnoticed.
Regular utilisation reporting by location allows you to identify these opportunities and arrange inter-warehouse transfers to move equipment where it is needed. The transport cost of a transfer is usually far less than the lost revenue from an idle asset.
Seasonal adjustments
Many rental businesses experience significant seasonal variation. Event rental companies are busiest in summer, construction equipment demand peaks in spring and autumn, and party rental surges around holidays. Understanding your seasonal patterns allows you to:
- Build up stock before peak periods
- Offer promotional rates during quiet periods to lift utilisation
- Schedule major maintenance during predictable low-demand windows
- Consider short-term sub-rentals from other companies to meet peak demand rather than buying equipment that will sit idle for much of the year
Pricing strategy and utilisation
Pricing and utilisation are directly connected. Lowering prices generally increases utilisation but reduces financial returns per rental. Raising prices may reduce utilisation but improve margin per transaction. The art is finding the balance that maximises total revenue.
Dynamic pricing — adjusting rates based on demand, season, or booking lead time — can help optimise this balance. Higher rates during peak periods when equipment would rent anyway, and lower rates during quiet periods to attract bookings that would otherwise not happen.
Measuring utilisation effectively
To measure utilisation properly, you need accurate data on three things:
- Time available: The total time the equipment could be on rent, excluding scheduled maintenance, transit time, and any other planned downtime.
- Time on rent: The actual time the equipment was on hire to clients.
- Revenue generated: The rental income from the asset over the measurement period (for financial utilisation).
Manual tracking of these metrics is possible for small fleets but becomes impractical as your inventory grows. Rental management software calculates utilisation automatically from your booking and return data, providing real-time dashboards and historical trend analysis.
NexusRMS calculates both time and financial utilisation automatically for every asset in your fleet. The reporting dashboard shows utilisation by individual asset, product category, and warehouse location, with trend analysis to help you spot changes over time. Missed rental tracking is built into the booking workflow.
Beyond the number
Utilisation rate is a powerful metric, but it is not the only one that matters. A rental business that optimises purely for utilisation might sacrifice margin, customer service, or equipment condition. The best-run rental companies use utilisation as one input alongside financial performance, customer satisfaction, and asset condition to make balanced decisions about their fleet.
Start by measuring it. Then use the data to ask better questions about your business.