Can it work out take-home pay?

No. Income tax, resident tax and social insurance depend on the number of dependants, the municipality, the health insurance society and whether you are over 40 (nursing-care insurance). Take-home is often said to be 75-85% of gross, but that range spans tens of thousands of yen a month, so read it off a payslip or ask your employer if you need the real number.

Can I check I am above the minimum wage?

Use "salary to hourly" and compare against your prefecture's minimum wage. Note that the minimum-wage test excludes attendance allowances, commuting and family allowances, overtime premiums and bonuses — a different list from the one used for the overtime base, so do not reuse one number for both. The minimum wage itself is revised every year, so take the current figure from the Ministry of Health, Labour and Welfare or your prefectural labour bureau.

1,500 yen an hour or 250,000 a month — which is better?

They cannot be compared until one is converted. At 160 scheduled hours a month, 250,000 works out to 1,562 an hour, so the salary is slightly ahead; at 170 hours it is 1,470 and the order reverses. What actually decides these comparisons is scheduled hours rather than the headline figure: the same salary shifts by around 10% in hourly terms between 105 and 125 days of annual holiday.

What if fixed overtime pay is included?

Putting the whole advertised figure into "salary to hourly" inflates the result. Fixed overtime is supposed to be shown separately, so from a line like "280,000 a month (includes 60,000 for 45 hours of fixed overtime)", enter only the 220,000. Hours worked beyond the fixed allowance must still be paid separately, and those can be worked out under "overtime".

I am under 40 hours a week but I am told I get overtime pay.

That happens when the employer's scheduled hours are shorter than the statutory 8. On a 7-hour contract, the eighth hour is inside the statutory limit, so a premium is not legally required — but many work rules promise one for anything beyond scheduled hours, and the contract then governs. Since you choose the rate here, count that hour at x1.0 under "income from an hourly wage" instead.

Are the amounts I type sent anywhere?

No, and nothing is stored. The arithmetic happens in the page, salary figures never reach a server, and closing the tab clears the inputs.

How is a salary converted to an hourly rate?

Base salary divided by scheduled monthly hours — and what you count as base salary changes the answer. Japanese law lets an employer exclude a closed list of allowances from the base used for overtime: family, commuting, separation, child-education and housing allowances, plus irregular payments and anything paid at intervals longer than a month, such as a bonus. The list is exhaustive, so an allowance not named on it — a role allowance or a qualification allowance, say — stays in the calculation. Checking your pay against the minimum wage uses a different exclusion list again, so do not simply divide the gross figure for that.

How do I find my scheduled monthly hours?

The employment contract or the work rules are authoritative, and the figure is usually printed there as "average scheduled monthly hours". If it is not written down, (365 - annual holidays) x daily scheduled hours / 12 gives it: 120 days off and an 8-hour day works out to about 163 hours. Dividing by each month's actual days instead would make the hourly equivalent wobble month to month, which is why the year is averaged. The default of 160 here is the rough "8 hours x 20 days" figure and will usually differ from a real contract.

Where do 1.25, 1.35 and 1.5 come from?

They are the minimum premiums set by the Labour Standards Act. Work beyond 8 hours a day or 40 hours a week carries at least +25%; work on a statutory rest day at least +35%; work between 22:00 and 05:00 at least +25%. Late-night and overtime arise for different reasons, so they stack: late-night overtime is 25% + 25%, that is x1.5. Rest-day work and overtime do not stack, so a statutory rest day stays at x1.35 however many hours it runs. Overtime beyond 60 hours in a month carries at least +50%, and since April 2023 that applies to small and medium employers too.

Why is the yearly figure just monthly x 12?

Because bonuses and allowances are not included. Whether a bonus is paid at all, and how many months it is worth, varies by employer, and a performance-linked one varies by year as well. Assuming "probably two months" would bury that guess inside the result. Add your own bonus to the yearly figure, and when comparing against an advert quoting "4,000,000 a year including bonus", add it before lining the two up — otherwise you are comparing figures built on different rules.

Back to all tools／ Calculators

Hourly Wage, Salary and Overtime

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Daily, monthly and yearly income from an hourly wage; hourly equivalent from a monthly salary; overtime pay from hours and a premium rate. All figures are gross.

Input

What to work out

Hourly wage

Hours per day

Working days per month

Output

Enter the figures and the gross income appears here.

An hourly rate and a monthly salary cannot be compared until one is converted into the other. Ten hours difference in scheduled monthly hours moves the hourly equivalent by nearly 10%.

Or type what you want to work out

All tools

Why this one

Three calculations, one screen: Income from an hourly wage, a salary converted to hourly, and overtime pay. These are the three you need to compare job offers, and which direction you need changes with each comparison: a shop advertising an hourly rate and a company advertising a monthly salary cannot be lined up until one is expressed in the other's unit. Having all three here means the round trip happens on one page.
Pick a premium rate: The Japanese statutory rates — x1.25 for overtime, x1.35 for work on a statutory rest day, x1.5 for overtime worked late at night — are one tap away, and both the per-hour rate and the monthly total appear. You do not have to remember which multiplier applies, because each option is labelled with the situation it covers.
Clearly gross: Take-home pay differs from person to person. Income tax, resident tax, health insurance, pension and employment insurance are each withheld on their own basis, and the result moves with the number of dependants, the municipality and which insurance society you belong to. Rather than inventing a plausible-looking number, the tool states on screen that these figures are before tax and deductions.

How to use

Choose what to work out
Income from an hourly wage, salary to hourly, or overtime. The input fields swap when you choose, so only the ones that calculation needs remain.
Enter the numbers
8 hours a day, 20 days a month and 160 hours a month are filled in as defaults; change them to match your contract. Pasted figures with commas or a currency suffix are read as well.
Read the result
Daily, monthly and yearly figures appear, or the hourly equivalent and the overtime pay. "Copy result" takes the whole block, so comparing several job ads works well pasted into a spreadsheet.

Assumptions

How is a salary converted to an hourly rate?: Base salary divided by scheduled monthly hours — and what you count as base salary changes the answer. Japanese law lets an employer exclude a closed list of allowances from the base used for overtime: family, commuting, separation, child-education and housing allowances, plus irregular payments and anything paid at intervals longer than a month, such as a bonus. The list is exhaustive, so an allowance not named on it — a role allowance or a qualification allowance, say — stays in the calculation. Checking your pay against the minimum wage uses a different exclusion list again, so do not simply divide the gross figure for that.
How do I find my scheduled monthly hours?: The employment contract or the work rules are authoritative, and the figure is usually printed there as "average scheduled monthly hours". If it is not written down, (365 - annual holidays) x daily scheduled hours / 12 gives it: 120 days off and an 8-hour day works out to about 163 hours. Dividing by each month's actual days instead would make the hourly equivalent wobble month to month, which is why the year is averaged. The default of 160 here is the rough "8 hours x 20 days" figure and will usually differ from a real contract.
Where do 1.25, 1.35 and 1.5 come from?: They are the minimum premiums set by the Labour Standards Act. Work beyond 8 hours a day or 40 hours a week carries at least +25%; work on a statutory rest day at least +35%; work between 22:00 and 05:00 at least +25%. Late-night and overtime arise for different reasons, so they stack: late-night overtime is 25% + 25%, that is x1.5. Rest-day work and overtime do not stack, so a statutory rest day stays at x1.35 however many hours it runs. Overtime beyond 60 hours in a month carries at least +50%, and since April 2023 that applies to small and medium employers too.
Why is the yearly figure just monthly x 12?: Because bonuses and allowances are not included. Whether a bonus is paid at all, and how many months it is worth, varies by employer, and a performance-linked one varies by year as well. Assuming "probably two months" would bury that guess inside the result. Add your own bonus to the yearly figure, and when comparing against an advert quoting "4,000,000 a year including bonus", add it before lining the two up — otherwise you are comparing figures built on different rules.

FAQ

Can it work out take-home pay?: No. Income tax, resident tax and social insurance depend on the number of dependants, the municipality, the health insurance society and whether you are over 40 (nursing-care insurance). Take-home is often said to be 75-85% of gross, but that range spans tens of thousands of yen a month, so read it off a payslip or ask your employer if you need the real number.
Can I check I am above the minimum wage?: Use "salary to hourly" and compare against your prefecture's minimum wage. Note that the minimum-wage test excludes attendance allowances, commuting and family allowances, overtime premiums and bonuses — a different list from the one used for the overtime base, so do not reuse one number for both. The minimum wage itself is revised every year, so take the current figure from the Ministry of Health, Labour and Welfare or your prefectural labour bureau.
1,500 yen an hour or 250,000 a month — which is better?: They cannot be compared until one is converted. At 160 scheduled hours a month, 250,000 works out to 1,562 an hour, so the salary is slightly ahead; at 170 hours it is 1,470 and the order reverses. What actually decides these comparisons is scheduled hours rather than the headline figure: the same salary shifts by around 10% in hourly terms between 105 and 125 days of annual holiday.
What if fixed overtime pay is included?: Putting the whole advertised figure into "salary to hourly" inflates the result. Fixed overtime is supposed to be shown separately, so from a line like "280,000 a month (includes 60,000 for 45 hours of fixed overtime)", enter only the 220,000. Hours worked beyond the fixed allowance must still be paid separately, and those can be worked out under "overtime".
I am under 40 hours a week but I am told I get overtime pay.: That happens when the employer's scheduled hours are shorter than the statutory 8. On a 7-hour contract, the eighth hour is inside the statutory limit, so a premium is not legally required — but many work rules promise one for anything beyond scheduled hours, and the contract then governs. Since you choose the rate here, count that hour at x1.0 under "income from an hourly wage" instead.
Are the amounts I type sent anywhere?: No, and nothing is stored. The arithmetic happens in the page, salary figures never reach a server, and closing the tab clears the inputs.

Input

Output

Related tools

Why this one

How to use

Choose what to work out

Enter the numbers

Read the result

Assumptions

FAQ