On-Time Delivery Rate Calculator: On-Time Deliveries as a Share of Total
Work out your on-time delivery (OTD) rate from on-time and total deliveries — the core supply-chain and logistics metric for reliability, with the late-delivery share shown alongside.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | On-time delivery rate | Late rate |
|---|---|---|
| 920 of 1,000 (92%) | 92.00% | 8.00% |
| 950 of 1,000 (95%, world-class) | 95.00% | 5.00% |
| 850 of 1,000 (85%, needs work) | 85.00% | 15.00% |
| 188 of 200 (94%) | 94.00% | 6.00% |
How This Calculator Works
Enter the number of on-time deliveries and the total deliveries during the period. The calculator divides one by the other and multiplies by 100 to give the on-time delivery rate, with the late rate shown next to it. Define 'on time' consistently — usually on or before the promised/committed date.
The Formula
Part as a Percentage of a Whole
Part is the portion, Whole is the total it belongs to
Worked Example
920 on-time deliveries out of 1,000 is a 92% on-time delivery rate, with 8% late. OTD is a key performance indicator in logistics, manufacturing, and e-commerce, directly tied to customer satisfaction and contract compliance. World-class operations often target 95%+; many B2B contracts specify a minimum OTD (with penalties below it). The right benchmark depends on the industry and how strictly 'on time' is defined.
Key Insight
On-time delivery rate is a deceptively simple metric whose value depends heavily on definition and what it's paired with. First, define 'on time' precisely and consistently — on or before the promised date, the customer's requested date, or a delivery window — because the same operation can show very different OTD depending on the standard, and customers and contracts may define it differently than you do internally. Second, watch what the average hides: a 92% rate might mask that the 8% late are your highest-value or most strategic customers, so segmenting OTD by customer, product, lane, or carrier reveals where the real problem is. Third, pair OTD with related metrics — order accuracy and fill rate (did the right items arrive complete?), since an on-time but wrong or incomplete delivery isn't really a success, and lead time (a high OTD achieved by quoting very long lead times isn't impressive). For improvement, trace late deliveries to root causes (supplier delays, production bottlenecks, carrier issues, demand spikes) rather than treating the rate as a single number. Track the trend, set a target appropriate to your industry and contracts, and use segmentation to focus fixes where lateness costs the most.
Frequently Asked Questions
How is the on-time delivery rate calculated?
Divide on-time deliveries by total deliveries, then multiply by 100. 920 on-time out of 1,000 is a 92% on-time delivery rate, with an 8% late rate. Define 'on time' consistently — usually on or before the promised date.
What's a good on-time delivery rate?
World-class operations often target 95%+, and many B2B contracts specify a minimum OTD with penalties below it. The right benchmark depends on the industry and how strictly 'on time' is defined. Compare against your contracts and your own trend rather than a universal number.
How should I define 'on time'?
Precisely and consistently — on or before the promised date, the customer's requested date, or a delivery window. The same operation can show very different OTD depending on the standard, and customers may define it differently than you do internally, so align your definition with what matters to them.
Why segment the on-time delivery rate?
Because the average can hide where lateness hurts. A 92% rate might mask that the late 8% are your highest-value or most strategic customers. Segmenting by customer, product, lane, or carrier reveals the real problem areas so you can focus improvements where they matter most.
What metrics should I track alongside OTD?
Order accuracy and fill rate (an on-time but wrong or incomplete delivery isn't a real success) and lead time (a high OTD achieved by quoting very long lead times isn't impressive). Together these give a fuller picture of delivery performance than OTD alone.
Related Calculators
Methodology & Review
The on-time delivery rate is on-time deliveries divided by total deliveries, multiplied by 100. The complement is the late-delivery rate. It measures deliveries meeting the promised date and does not weight by order value or distinguish degrees of lateness.
Written by Ugo Candido · Last updated May 22, 2026.