Project Management Statistics: What 1,595 Real Project Plans Look Like
We analyzed the structured plan data behind every project template in the Instagantt gallery — 244,641 tasks and 128,569 dependency links — to answer questions that are usually guessed at: how many tasks does a project have, how long do projects run, and how do teams actually structure their plans.
Data computed June 12, 2026. Free to cite with attribution to Instagantt.
How Big Is a Typical Project Plan?
The median plan contains 137 tasks organized into roughly 20 phases, and the average is pulled up to 153 tasks by a long tail of large programs. Most structure lives below the surface: 87.2% of all tasks are subtasks nested under a phase or parent task, confirming that real plans are built as hierarchies, not flat lists. The average scheduled task lasts 15 days — squarely inside the one-day-to-two-weeks sizing rule that keeps tasks estimable.
| Metric | Value |
|---|---|
| Project plans analyzed | 1,595 |
| Total tasks in dataset | 244,641 |
| Median tasks per plan | 137 |
| Average tasks per plan | 153 |
| 90th-percentile tasks per plan | 233 |
| Average phases per plan | 19.7 |
| Tasks that are subtasks (hierarchy depth) | 87.2% |
| Average task duration | 15 days |
How Long Do Projects Run?
Projects are longer than most planning advice assumes. The median plan spans 301 days — about 10 months — from its first task to its last, and 38.2% of plans run beyond a full year. Short projects are rare in practice: only 4.7% of plans complete within three months. The 90th-percentile plan stretches to 906 days, which is why baselines and dependency-driven rescheduling matter — over timelines this long, the original plan never survives unchanged.
| Plan duration | Plans | Share |
|---|---|---|
| Under 1 month | 9 | 0.6% |
| 1–3 months | 66 | 4.1% |
| 3–6 months | 337 | 21.1% |
| 6–12 months | 574 | 36.0% |
| Over 1 year | 609 | 38.2% |
Dependencies Are the Norm, Not the Exception
99.8% of the plans analyzed link tasks with dependencies, and 50.5% of all individual tasks depend on at least one other task — 128,569 dependency links in total. In other words, half of everything in a real project plan cannot start until something else finishes. This is the strongest data point in the set: scheduling logic is not an advanced feature professionals skip, it is the default way they build plans.
The practical implication is the tool requirement it creates. A plan where half the tasks are interconnected cannot be maintained by hand: one date change ripples through dozens of downstream tasks. That is why dependency-aware rescheduling — drag one task and the chain updates — is the line between tools that model a project and tools that merely draw it.
Methodology
This dataset was computed in June 2026 from the structured plan data — task lists, phase hierarchies, start and due dates, and dependency links — behind all 1,595 project plan templates published in the Instagantt template gallery. These are complete, professionally constructed project plans spanning software, construction, marketing, events, education, healthcare, manufacturing, and dozens of other domains.
Durations are calendar days between a plan's earliest task start and latest task due date. Phases are top-level tasks; subtasks are any task nested under a parent. Dependency figures count only links whose source and target both exist within the same plan. Because the corpus consists of curated plan templates rather than self-reported surveys, the numbers describe how complete project plans are actually structured — they are not estimates of project success rates or budgets.
You are free to cite, quote, or reproduce these statistics with attribution and a link to Instagantt (www.instagantt.com).
Frequently Asked Questions
How many tasks does a typical project plan have?
Across 1,595 professionally built project plans, the median plan contains 137 tasks and the average contains 153. The top 10% of plans contain 233 tasks or more. Plans are typically organized into about 20 phases.
How long does a typical project last?
The median project plan in this dataset spans 301 days — about 10 months — from first task start to last task due date. About 38% of plans run longer than a year, while only 4.7% finish within three months.
How common are task dependencies in project plans?
Nearly universal: 99.8% of the plans analyzed use dependency links, and 50.5% of all individual tasks are linked to at least one other task. The dataset contains 128,569 dependency links across 244,641 tasks.
How long is a typical project task?
The average scheduled task in the dataset lasts 15 days — consistent with the common planning guideline that tasks should be sized between one day and two weeks so they stay estimable and trackable.
Where does this data come from?
From the structured plan data (tasks, phases, dates, and dependency links) behind all 1,595 project plan templates published in the Instagantt template gallery, analyzed in June 2026. It reflects professionally constructed plans across industries — not self-reported survey answers.