予想 vs. 予測 vs. 予定: How to Tell These JLPT N2 Words Apart

Introduction

The Japanese words 予想 (yosou / expectation, prediction), 予測 (yosoku / forecast, prediction), and 予定 (yotei / plan, schedule) can be confusing because all three are connected with the future.

However, they describe three very different ways of looking at what comes next.

Are you simply thinking about what will happen?

Are you analyzing information to predict what will happen?

Or has a future action already been planned?

Once you understand this distinction, these three words become much easier to use naturally.

Let’s start with the key difference.

The Simple Answer First

予想 (yosou) means thinking about what you believe will happen.

予測 (yosoku) means predicting what will happen based on information, data, trends, or analysis.

予定 (yotei) means something has been planned or scheduled for the future.

A simple way to remember them is:

• 予想: What do you think will happen?
• 予測: Based on the information, what is likely to happen?
• 予定: What is planned to happen?

The most important distinction is that 予想 and 予測 are about predicting future outcomes, while 予定 is about plans and schedules.

Understanding the Difference in Meaning

予想 (Yosou): What You Think Will Happen

予想 (yosou) is used when you imagine or expect a future result.

You may base your prediction on experience, knowledge, or the current situation, but detailed data or formal analysis is not necessarily required.

For example, before a soccer match, you might think:

日本が勝つと思う。
I think Japan will win.

You can express the same idea using 予想:

日本が勝つと予想する。
I predict that Japan will win.

予想 is widely used in both everyday conversation and written Japanese.

It can be used for things such as:

• sports results
• test results
• sales
• customer numbers
• reactions
• future developments

You will also frequently see expressions such as:

• 予想以上 (yosou ijou / more than expected)
• 予想外 (yosougai / unexpected)

These are especially useful expressions for JLPT learners.

予測 (Yosoku): Predicting the Future from Information

予測 (yosoku) also refers to something that has not happened yet.

The difference is that 予測 usually suggests that the prediction is based on information, statistics, data, trends, or analysis.

For example:

今後、高齢者の人口が増加すると予測されています。
It is predicted that the elderly population will increase in the future.

This kind of statement may be based on demographic statistics or other research.

Because of this analytical nuance, 予測 frequently appears in:

• news reports
• academic writing
• business
• economics
• market analysis
• scientific research
• statistics

The important image behind 予測 is:

Current information → analysis → future result

This does not mean that every 予測 is perfectly objective or scientifically proven. The key idea is that there is some kind of evidence or information behind the prediction.

予定 (Yotei): Something Planned for the Future

予定 (yotei) is quite different from 予想 and 予測.

It does not mean predicting what will happen.

Instead, it refers to something that someone plans to do or something that has been scheduled.

For example:

来週、東京へ行く予定です。
I plan to go to Tokyo next week.

You are not predicting that you will somehow end up in Tokyo. Going to Tokyo is your plan.

Another example:

会議は午後3時に始まる予定です。
The meeting is scheduled to begin at 3 p.m.

The starting time has already been arranged.

A useful image for 予定 is:

A future event that has been planned or scheduled

When Should You Use Each Word?

When to Use 予想

Use 予想 when someone is thinking about a possible result or outcome.

Common situations include:

• predicting a sports result
• expecting a test result
• estimating sales or customer numbers
• imagining someone's reaction
• thinking about how a situation will develop
• comparing the actual result with what you expected

For example:

予想以上に難しかった。
It was more difficult than expected.

Even though the event has already happened, 予想 refers to what you had expected before it happened.

When to Use 予測

Use 予測 when the future is being estimated from information, patterns, data, or analysis.

You will often encounter it in discussions of:

• the economy
• population
• markets
• demand
• sales
• climate
• natural disasters
• science
• technology
• social change

In JLPT reading passages, a very common structure is:

今後〜すると予測されている。
It is predicted that ~ will happen in the future.

Compared with 予想, 予測 sounds more analytical and evidence-based.

When to Use 予定

Use 予定 when talking about plans and schedules.

Typical examples include:

• trips
• business trips
• meetings
• classes
• events
• product launches
• construction
• departure and arrival times
• personal plans
• company plans

You will also hear this very common question:

週末は何か予定がありますか。
Do you have any plans for the weekend?

Example Sentences

Examples with 予想

明日の試合は、日本が勝つと予想しています。
I predict that Japan will win tomorrow's match.

The match has not taken place yet. The speaker believes Japan will win.

新しい店には多くの客が来ると予想していました。
We expected many customers to come to the new store.

Before the store opened, the speaker believed that many customers would visit.

試験は予想以上に難しかったです。
The exam was more difficult than I expected.

The actual difficulty was greater than what the speaker had imagined beforehand.

彼が会社を辞めるとは予想していませんでした。
I didn't expect him to quit the company.

The speaker had not imagined that this would happen.

Examples with 予測

専門家は、来年も物価が上昇すると予測しています。
Experts predict that prices will continue to rise next year.

The prediction is based on economic conditions, data, or analysis.

このデータから、今後さらに利用者が増えると予測できます。
From this data, we can predict that the number of users will continue to increase.

The key phrase here is このデータから (kono deeta kara / from this data). This makes 予測 especially natural.

将来、この地域では人口が減少すると予測されています。
It is predicted that the population of this area will decrease in the future.

The prediction is likely based on demographic data or trends.

需要を正確に予測することは簡単ではありません。
Accurately forecasting demand is not easy.

Because demand is being estimated from market conditions and information, 予測 is natural.

Examples with 予定

来月、日本へ帰る予定です。
I plan to return to Japan next month.

The speaker has already made this plan.

会議は午後2時から始まる予定です。
The meeting is scheduled to begin at 2 p.m.

This is a scheduled event rather than a prediction.

新しいサービスは10月に開始される予定です。
The new service is scheduled to launch in October.

The launch has been planned.

今日は友達と食事をする予定でしたが、急に仕事が入りました。
I was planning to have dinner with a friend today, but some unexpected work came up.

The original plan changed because of a new situation.

Common Mistakes

Don't Confuse 予定 with 予想

Consider this sentence:

来週、東京へ行く予想です。

This sounds unnatural if you mean that you have decided to go to Tokyo.

Going to Tokyo is your plan, so the natural sentence is:

来週、東京へ行く予定です。
I plan to go to Tokyo next week.

Now consider:

明日の試合は日本が勝つ予定です。

This is also strange in an ordinary sports context.

The winner of a normal match is not supposed to be decided in advance.

Instead, say:

明日の試合は日本が勝つと予想しています。
I predict that Japan will win tomorrow's match.

Natural Events Are Usually Not 予定

For ordinary weather, this sentence sounds unnatural:

明日は雨が降る予定です。

予定 suggests that something has been planned or scheduled. Rain is not normally something people schedule.

A more natural expression is:

明日は雨が降ると予想されています。
Rain is expected tomorrow.

In everyday Japanese, however, weather is also very commonly discussed using 予報 (yohou / forecast):

天気予報では、明日は雨です。
According to the weather forecast, it will rain tomorrow.

予想 and 予測 Are Similar, but Not Identical

Compare these two sentences:

今年は売上が増えると予想しています。
I expect sales to increase this year.

過去5年間のデータから、今年は売上が増えると予測しています。
Based on data from the past five years, we predict that sales will increase this year.

Both sentences are possible.

The first simply expresses an expectation.

The second emphasizes that the prediction is based on data.

When you see words such as データ (data), 統計 (statistics), 傾向 (trend), or 分析 (analysis), 予測 is often the more natural choice.

How to Tell Them Apart on the JLPT

Knowing the English translation alone may not be enough on an actual JLPT question.

Instead, look closely at the surrounding context.

Clues for 予想

Consider 予想 when the sentence involves:

• guessing a result
• what someone expected before something happened
• comparing an actual result with an expectation
• 予想以上
• 予想外

These expressions are particularly important:

予想以上 (yosou ijou)
more than expected

予想外 (yosougai)
unexpected

Clues for 予測

Consider 予測 when you see ideas such as:

• データ (data)
• 統計 (statistics)
• 分析 (analysis)
• 傾向 (trend)
• 人口 (population)
• 経済 (economy)
• 需要 (demand)
• 市場 (market)
• 将来 (future)
• 今後 (from now on / in the future)

For example:

過去のデータをもとに、今後の需要を＿＿する。
Based on past data, we _____ future demand.

The natural answer is:

予測する
predict / forecast

The phrase 過去のデータをもとに (based on past data) is a strong clue.

Clues for 予定

Choose 予定 when the question is about:

• holding a meeting
• launching a product
• taking a trip
• starting construction
• holding an event
• arrival or departure
• a specific date or time
• something someone has decided to do

For example:

新しい駅は来年4月に完成する＿＿です。
The new station is _____ to be completed next April.

The natural answer is:

予定
scheduled / planned

The completion date is part of a plan or schedule.

A Quick Three-Step Test

When 予想・予測・予定 appear together in the answer choices, ask yourself these three questions:

1. Has someone decided or scheduled what will happen?
   → 予定

2. Is the future being estimated from data, information, or trends?
   → 予測

3. Is someone simply thinking, expecting, or guessing what will happen?
   → 予想

Because 予定 has a clearly different function from the other two, identifying it first often makes JLPT questions much easier.

Summary

All three words relate to the future, but they focus on different things.

• 予想 (yosou): thinking about what will probably happen
• 予測 (yosoku): predicting what will happen based on information or analysis
• 予定 (yotei): something planned or scheduled for the future

A useful shortcut is:

予想 = expectation

予測 = evidence-based prediction

予定 = plan or schedule

If you understand the meanings but still hesitate when these words appear in actual JLPT questions, the next step is practice.

Knowing a definition is only the beginning. To use Japanese naturally, you need repeated practice deciding which word fits a real sentence.

At RJT (Rapid Japanese Training), you can build your JLPT vocabulary and grammar skills by solving practical questions in short, focused sessions.

If you're aiming to move from N3 to N2, reduce mistakes between similar words, and make faster decisions in vocabulary and reading questions, try practicing with RJT (Rapid Japanese Training).