# T Shirt Sizing: Agile Estimation & Capacity Planning

> T shirt sizing helps teams estimate effort fast with XS–XL. Learn when to use it vs story points, set a scale, avoid pitfalls, and track workloads in Asana.

Source: https://asana.com/ko/resources/t-shirt-sizing

## T Shirt Sizing: Agile Estimation & Capacity Planning

What if we told you t-shirt sizes weren't just for clothing? T-shirt sizing is also a powerful project estimation tool, providing clarity about exactly what's on each team member's plate. When implementing a new practice, you naturally ask: How much work will this take to set up? Will my team easily understand it?

With t-shirt sizing, you can skip these concerns. Everyone intuitively understands the difference between an Extra Small and a Large t-shirt, and applying these sizes to team initiatives is a great way to gauge effort without complicated math.

## What is t-shirt sizing?

T-shirt sizing is an Agile estimation technique that uses familiar clothing sizes (XS, S, M, L, XL, XXL) to represent the relative effort of a task or project. Instead of assigning exact hours, teams use these intuitive sizes to quickly gauge [scope](/resources/project-scope), complexity, and [capacity](/resources/capacity-planning).

T-shirt sizing is a helpful tool for your entire team:
- **Project leads** can quickly gauge team capacity.
- **Individual contributors** can communicate their bandwidth and priorities clearly.
- **Team members** can understand who's doing what by when.

This technique is often used by engineering and software development teams, but any team can benefit from it; in fact, we use t-shirt sizing here at Asana for content projects (this article, for example, is a Medium).
- [프로젝트 공수 추정 템플릿 만들기](/templates/project-estimation)

### How to use t-shirt sizing for Agile projects

[Agile](/resources/agile-methodology) and [Scrum teams](/resources/what-is-scrum) initially popularized t-shirt sizing as a way to measure story points. [Story points](/resources/story-points) are a way to estimate effort or the relative size of work during [sprint planning](/templates/sprint-planning), and they're typically assigned to requests or work in a product backlog.

When the Scrum master begins the next sprint cycle, they pull tasks from the [sprint backlog](/resources/sprint-backlog) until they hit a certain number of story points. This helps the team take on enough work without biting off more than they can chew.

T-shirt sizing for Scrum teams is a form of relative estimation. This is an alternative to the more traditional, numerical story points [estimation technique](/resources/estimation-methods). Unlike numbers, relative estimating allows team members to think in more dimensions; numbers are often associated with time, but t-shirt sizes can represent more complex ideas, including time, effort, and complexity.

## When to use t-shirt sizing vs. story points

While both t-shirt sizing and story points help Agile teams estimate work, they serve different purposes. Think of t-shirt sizing as a tool for quick, high-level planning when you need a general sense of effort without getting stuck on exact numbers.

Story points offer more precision. Teams typically use them during [sprint planning](/resources/sprint-planning-meeting) to assign numerical values to tasks, which helps create more detailed and predictable sprints.

Factor

T-shirt sizing

Story points

**Best for**

Roadmaps, discovery, large backlogs

Sprint planning, velocity tracking

**Precision level**

Relative, high-level

Numerical, granular

**Speed**

Fast estimation sessions

More deliberate discussion

**Learning curve**

Easy for any team

Requires calibration

**Pro tip:** Many teams use both together, t-shirt sizes for high-level planning, then story points as work moves closer to execution.
- [참고: 스크럼이란 무엇인가요? 스크럼의 정의와 장점을 소개합니다](/resources/what-is-scrum)

## 6 steps to using t-shirt sizing for project estimation

To use t-shirt sizing effectively, it's important to establish up front what each t-shirt size represents and where team members should clarify relative sizing.

### 1. Start by deciding on your sizes

Before you introduce t-shirt sizing to your team, decide on the sizes you want to use. Avoid using too many sizes so team members aren't confused. If you're just getting started, stick to Small, Medium, Large, and Extra Large. If your projects vary widely in scope, use Extra Small or Extra, Extra Large as well.

### 2. Align on what each size represents

T-shirt sizing only works if everyone understands what each size represents. As you introduce this practice to your team, make sure everyone is aligned by providing common examples of each size.

For example, on the content team at Asana:
- **Medium:** A standalone article like this one
- **Large:** A cross-functional content initiative with multiple pieces and a variety of [project stakeholders](/resources/project-stakeholder)
- **Extra Large:** A major campaign spanning multiple teams and deliverables

When you do this, also clarify what a t-shirt size represents. Does the size represent effort? Complexity? Time? Often, a t-shirt size represents all of the above, but clarifying what you are and aren't tracking with t-shirt sizes is a helpful way to get everyone on the same page.

### 3. Decide who assigns t-shirt sizes

Depending on your [team structure](/resources/team-structure), consider limiting who can assign t-shirt sizes or opening it up for the entire team. Here are a few common ways to limit who can assign t-shirt sizes:
- **For product backlog projects**, the product owner assigns t-shirt sizes, because they're closest to the work.
- **For Agile teams running Scrum**, the Scrum master reviews the t-shirt sizes previously assigned by the product owner before a sprint.
- **For general project teams**, each team member sets their own t-shirt size based on the team's understanding of what each size represents.

### 4. Assign t-shirt sizes to each initiative

If you're just starting out, you may have to retroactively assign t-shirt sizes to work in flight. Moving forward, each piece of work should have an associated t-shirt size when it's assigned. This ensures you and the team member both understand how much effort that work represents.

### 5. Track t-shirt sizes using a work management tool

Having t-shirt sizes associated with work is good, but seeing that information in a clear, centrally accessible tool is much better. Make sure your team tracks t-shirt sizes in a shared [work management tool](/uses/work-management), like Asana. That way, you and all other team members get at-a-glance insight into each team member's current workload.

### 6. Use t-shirt sizing to gauge workload

Once each task is assigned a t-shirt size, you also have built-in workload tracking for your team. Use a work management tool, like [Asana](/product), to gauge associated effort and get a sense of how much work each team member has on their plate. By tracking this work, you can ensure team members aren't getting burnt out.

## T-shirt sizing estimation examples

Here's an example of a sprint planning project, using t-shirt sizing in place of traditional story points:

Engineers aren't the only ones who benefit from t-shirt sizing. Here's another example of a content calendar with associated t-shirt sizes for each piece of content:
- [필독: 팀 업무량을 효과적으로 관리하는 방법](/resources/effectively-manage-team-workload)

## The benefits of t-shirt sizing

Though simple to use, t-shirt sizing is a powerful way to simplify estimation [lead time](/resources/lead-time), especially for non-engineering teams. With t-shirt sizing as a shorthand for capacity and effort, team members spend less time thinking about how many hours a task will take and more time getting high-impact work done.

When you track t-shirt sizing in a centralized tool, everyone can see who's doing what by when and how much they're doing at any given point. T-shirt sizing also serves as a stepping stone to broader [workload management](/resources/effectively-manage-team-workload) practices:
- **Distribute work evenly:** Spot imbalances before they lead to burnout
- **Prevent overwork:** Identify when team members are [taking on too much](/resources/overworked-signs)
- [Plan capacity](/templates/capacity-planning)**:** Make informed decisions about what your team can realistically take on

## Common t-shirt sizing pitfalls and how to avoid them

T-shirt sizing is powerful and easy to set up, but there are a few things to watch out for as you implement this [project estimation](/resources/project-estimation) methodology:

### Problem: T-shirt sizing is subjective

**Solution:** Establish sizes for common projects so everyone is on the same page.

To prevent this problem, make sure you provide context for t-shirt sizes when you first roll them out. That way, you avoid the subjective component and ensure everyone on your team clearly understands the difference between an Extra Small, Small, and Medium t-shirt task.

### Problem: The difference between different sizes is unclear

**Solution:** Stick to fewer sizes.

If your team can't understand the nuances between multiple sizes, reduce the number of sizes they're choosing from. Stick to S, M, L, and XL, or remove XL altogether and stick to S, M, and L. You can always add more sizes if necessary.

### Problem: Tracking an initiative's associated t-shirt size is difficult

**Solution:** Use a work management tool.

There are two huge benefits to t-shirt sizing: capacity planning and workload visibility. In both cases, you need a centralized tool to access everyone's work to reap the benefits. That's where work management tools come in.

Work management tools provide the clarity teams need to hit their goals faster. With these tools, you can coordinate people across your team and ensure everyone has the information they need to do their highest-impact work. To learn more, read our [introduction to work management](/resources/introduction-to-work-management).

## Make t-shirt sizing work for your team

T-shirt sizing offers a simple, intuitive way to estimate work and manage your team's capacity. By bringing these estimates into a central tool, you can give everyone clarity on what's being worked on and prevent burnout before it starts. Ready to see how it fits your team? [Get started](/create-account) with Asana today.

## Frequently asked questions about t-shirt sizing

#### What does t-shirt sizing mean in Agile?

In Agile, t-shirt sizing is a relative estimation technique used to quickly gauge the overall effort required for a task or project. Instead of assigning exact hours or days, teams use familiar sizes like Small, Medium, and Large to represent the work's complexity and scope.

#### Can you convert t-shirt sizes to story points?

Yes, many teams use t-shirt sizes as a starting point and then map them to a numerical story point range (e.g., Small = 1–2 points, Medium = 3–5 points). This helps bridge high-level planning with detailed sprint execution, but it's important for the team to agree on the conversion scale first.

#### What's the difference between t-shirt sizing and story points?

T-shirt sizing offers quick, broad estimates for high-level planning, while story points provide granular precision for sprint commitments and velocity tracking. Choose t-shirt sizing for speed and story points when you need detailed forecasting.

- [프로젝트 관리](/resources/project-management)

- [비즈니스 리스크를 예방하는 비상 대책을 수립하는 8가지 단계](/ko/resources/contingency-plan)

비즈니스 전략

프로젝트 계획

#### 글쓴이

원래의 계획이 실패하길 바라는 사람은 아무도 없습니다. 하지만 확실한 차선책을 마련해 두면 어떤 상황에도 잘 대처할 수 있습니다. 탄탄한 예비 계획을 세우면 예상치 못한 상황에서도 효과적으로 대응하고 최대한 신속하게 원래 계획으로 돌아올 수 있습니다.비상 대책은 부정적인 결과를 초래할 수 있는 상황에서 용이하게 대처하고 ...

- [효과적인 프로젝트 킥오프 미팅을 진행하기 위한 10단계](/ko/resources/project-kickoff-meeting)

프로젝트 계획

#### 글쓴이

프로젝트를 성공적으로 시작하려면 많은 노력을 쏟아부어야 합니다. 하지만 프로젝트가 시작되기도 전에 계획에서 벗어난 것처럼 느껴질 때가 많습니다. 프로젝트에 참여하는 팀원과 이해관계자가 저마다 다른 지식을 가지고 있으며, 기대치와 우선순위가 다양하기 때문입니다. 프로젝트를 시작하기 전에 모든 구성원과 보조를 맞출 기회를 ...

- [이해관계자 분석과 그 중요성](/ko/resources/project-stakeholder)

프로젝트 관리

프로젝트 계획

#### 글쓴이

여러분의 프로젝트가 오스카상 후보작에 올랐다고 생각해 보세요. 상을 받은 뒤 무대에 올라가서 소감을 말해야 합니다. 누구에게 감사를 표하시겠습니까?프로젝트 관리에서는 프로젝트 이해관계자에게 감사를 표할 것입니다. 이해관계자는 프로젝트에 이해관계가 있고 어떤 형태로든 목표 달성에 기여한 사람들입니다. 업무를 수행하는 사람 ...

- [아이젠하워 매트릭스: 할 일 목록의 우선순위를 지정하는 방법](/ko/resources/eisenhower-matrix)

리더십

프로젝트 계획

생산성

#### 작가

할 일 목록을 만드는 것은 업무를 완료하기 위한 첫 번째 단계입니다. 그런데 하루 안에 모든 일을 처리할 시간이 부족할 때, 어떤 업무부터 착수해야 할까요? 효과적으로 업무 우선순위를 지정하면 생산성을 높이고 가장 중요한 업무에 먼저 집중할 수 있습니다.아이젠하워 매트릭스는 긴급한 업무와 중요한 업무를 구분하여 효율적인 ...

- [티셔츠 사이즈 기법을 사용하여 프로젝트 공수를 추정하는 방법](/ko/resources/t-shirt-sizing)

프로젝트 계획

프로젝트 관리

- [글쓴이](/author/julia-martins)

What if we told you t-shirt sizes weren't just for clothing? T-shirt sizing is also a powerful project estimation tool, providing clarity about exactly what's on each team member' ...