South Korea→
JapanRelocate from South Korea to Japan
Thinking about moving from South Korea to Japan? Here's the honest picture — what changes in your costs, the salary you'd need, and how the two stack up.
Moving to Tokyo runs about 11% more expensive than Seoul.
The quick read before the full breakdown:
South KoreaJapanData signals
Seoul → Tokyo: what the numbers say
What the move does to your costs
Relocating from Seoul to Tokyo, typical monthly costs rise about 11%.
Salary to land comfortably
A balanced lifestyle in Tokyo needs roughly 4,694,064 JPY/year gross.
Quality-of-life shift
Quality of life improves on the move: Tokyo scores 78/100 on safety, healthcare and air versus Seoul's 73/100.
Biggest budget change
Transport shifts most: about 49% more expensive in Tokyo.
The decision picture
Moving to Japan, at a glance
Cost delta: Seoul → Tokyo
Each category is normalized to KRW using a 1 JPY = 8.8095 KRW reference rate.
| Category | Seoul | Tokyo | Change |
|---|---|---|---|
| housing | ₩1,100,000 | ¥150,000 | +20% |
| food | ₩450,000 | ¥48,000 | -6% |
| transport | ₩65,000 | ¥11,000 | +49% |
| utilities | ₩140,000 | ¥14,000 | -12% |
| leisure | ₩250,000 | ¥30,000 | +6% |
| healthcare | ₩35,000 | ¥4,000 | +1% |
Distance
How far is South Korea from Japan?
South Korea is about 1,150 km (720 mi) from Japan in a straight line — roughly 2 h 05 m of nonstop flight time.
Great-circle distance, not a routed itinerary; flight estimate assumes ~850 km/h cruise plus 45 minutes of taxi, climb and descent. Measured between the anchor cities Seoul and Tokyo.
Climate
Is Seoul warmer than Tokyo?
Tokyo is the warmer city: January highs average 10°C vs 2°C, and July 30°C vs 29°C. Seoul gets noticeably more sun — about 190 more sunshine hours per year.
| Month | Seoul | Tokyo |
|---|---|---|
| January (high / low) | 2° / -6°C | 10° / 2°C |
| July (high / low) | 29° / 22°C | 30° / 23°C |
Continental with monsoonal summers. Cold dry winters, hot humid wet summers, distinct rainy season in July. Yellow-dust events in spring.
Humid subtropical. Hot wet summers, cool dry winters, distinct rainy season in June. Typhoon risk September-October.
Remote work logistics
Time zones and language: Seoul vs Tokyo
Seoul (Asia/Seoul) and Tokyo (Asia/Tokyo) share the same standard-time offset — meetings, markets and deadlines line up 1:1.
Official: Korean · English: Moderate · Local language: Useful
Korean is the daily-life default. English usable in expat-heavy neighborhoods (Itaewon, Hannam) and international firms; outside that, limited. Hangul is easy to learn even if speaking is slow.
Official: Japanese · English: Limited · Local language: Recommended
Japanese strongly recommended for daily life beyond corporate Tokyo. English is limited in shops, hospitals, and bureaucracy — translation apps help but a friction tax remains for non-speakers.
Each axis is a weighted aggregate of underlying indicators normalized to a 0–10 scale. Weights are explicit and disclosed per axis. The composite is the unweighted mean of the four axes — axes are not collapsed further because the underlying trade-offs (e.g. low cost vs poor air quality) are user-dependent.
Affordability
- Cost-of-living index (weight 60%)82
- Rent index (weight 40%)55
How this is calculated
Affordability = ((100 − costIndex)/100 × 0.6 + (100 − rentIndex)/100 × 0.4) × 10. For Tokyo: ((100 − 82)/100 × 0.6 + (100 − 55)/100 × 0.4) × 10 = 2.9.
Tokyo is among the more expensive cities tracked. Salary expectations should be calibrated to the high cost base before relocating.
Quality of life
- Safety index (weight 40%)85
- Healthcare index (weight 35%)80
- Air quality index (weight 25%)70
How this is calculated
QoL = (safety/100 × 0.4 + healthcare/100 × 0.35 + airQuality/100 × 0.25) × 10. For Tokyo: (85/100 × 0.4 + 80/100 × 0.35 + 70/100 × 0.25) × 10 = 8.
Tokyo scores excellent on safety, excellent on healthcare and good on air. The composite quality-of-life signal is strong.
Remote-work friendliness
- Internet (median Mbps) (weight 45%)280 Mbps
- Effective income tax (lower = better) (weight 30%)12.0%
- Cost-of-living (lower = better) (weight 25%)82
How this is calculated
RemoteWork = (min(Mbps/300, 1) × 0.45 + (1 − incomeTax) × 0.3 + (100 − costIndex)/100 × 0.25) × 10. For Tokyo: (min(280/300, 1) × 0.45 + (1 − 0.12) × 0.3 + (100 − 82)/100 × 0.25) × 10 = 7.3.
Tokyo combines fast internet (280 Mbps median), a 12% effective income tax and cost index 82 — a strong configuration for remote workers earning in a stronger currency.
Healthcare
- Healthcare quality index (weight 70%)80
- Healthcare out-of-pocket / month (lower = better) (weight 30%)4000
How this is calculated
Healthcare = (qualityIndex/100 × 0.7 + max(0, 1 − OOP/500) × 0.3) × 10. For Tokyo: (80/100 × 0.7 + max(0, 1 − 4000/500) × 0.3) × 10 = 5.6.
Tokyo has trade-offs in healthcare: quality is excellent, typical out-of-pocket cost is ~4000 JPY/month. Cross-border insurance closes the gap.
Salary required in Japan
Using Tokyo as the destination anchor and Japan's effective payroll deductions.
Tools you'll need to move to Japan
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Step by step
How to move from South Korea to Japan
- Sort your visa for Japan
Points-based Highly Skilled Professional category, the recent Digital Nomad Visa, and various employer-sponsored routes.
Japan visa guide → - Budget your first months in Tokyo
A balanced lifestyle in Tokyo runs about ¥285,556 net per month — set your runway against that, not your current city's costs.
Tokyo cost of living → - Line up housing before you land
Expect housing to cost about 20% more than in Seoul. Short-term rental first, neighborhood scouting second is the standard playbook.
Housing costs in detail → - Plan the KRW → JPY transfer
Moving your savings through a bank's default rate usually costs 2-4% in hidden margin — compare against the mid-market rate before you move a large sum.
Money-transfer corridor → - Get moving quotes early
Removal pricing is driven by volume and mode (sea vs air) — quotes 8-12 weeks out are meaningfully cheaper than last-minute ones.
Moving costs South Korea → Japan → - Moving with pets? Start the paperwork now
Import rules often involve vaccination windows measured in months — this is the step people most regret starting late.
Pet relocation to Japan → - Kids? Map the school landscape
International-school admissions run on academic-year cycles and waitlists — align your moving date with intake windows.
Schools in Tokyo → - Sanity-check your take-home pay
Run your offer through Japan's income tax and social security before accepting — the gross-to-net gap varies enormously between countries.
Take-home pay in Japan →
Zoom out to the country picture: South Korea vs Japan on average wage, take-home after tax and cost of living.
How this page is calculated
Data sources
- Mundevo cost-of-living and rent indices. Anchor cities used for the corridor: Seoul for South Korea, Tokyo for Japan. These are population-weighted defaults that can be overridden by readers via a city-specific salary-needed page.
- FX rate. 1 JPY = 8.8095 KRW, sourced from Mundevo's exchange-rate provider on 2026-05-27.
- Japan payroll deductions. Effective income tax 12% and social security 15.0%.
- Mundevo quality indices. Safety, healthcare and air-quality composites on a 0–100 scale.
Update cadence
Data as of . Last reviewed .
Calculation
The corridor compares Seoul (anchor for South Korea) with Tokyo (anchor for Japan). Monthly basket costs are converted to KRW using the live FX rate, then differenced per category. Destination salary requirements use Japan's effective tax rate and the Mundevo lifestyle multipliers.
Limitations
- Corridor uses a single anchor city per country; if your origin or destination is a smaller city, run the dedicated salary-needed page to refine.
- FX is a snapshot. Rates move 1–3% per month — use the live rate on the day of any transfer.
- Tax model is the effective rate for a single salaried filer; visa-specific regimes (e.g. Portugal NHR) can shift the net by 5–10 percentage points but are not modeled here.
- Relocation costs (shipping, deposits, agency fees) are estimated separately by the partners surfaced below and are not included in the monthly cost delta.
Frequently asked questions
Is Japan cheaper than South Korea?
Moving from South Korea (anchored to Seoul) to Japan (anchored to Tokyo) is roughly 11% more expensive on the monthly basket. Tokyo has cost index 82 vs Seoul at 75.
What salary do you need in Tokyo after moving from South Korea?
At a balanced lifestyle, Tokyo requires ¥4,694,064 gross per year (¥285,556 take-home monthly). At the current FX rate (1 JPY = 8.8095 KRW), that's the equivalent of about ₩41,352,468 in KRW.
What about taxes in Japan?
Japan has an effective income tax rate of 12% for a single salaried filer, plus 15.0% employee-side social security and 10% VAT. Combined payroll deduction works out to ~27%. Country-specific regimes (e.g. NHR, Beckham law, expat tax holidays) are not modelled.
What's the best way to actually move from South Korea to Japan?
The corridor report on this page surfaces the tooling stack we recommend: an FX provider for the salary transfer, expat health insurance for the gap before local coverage kicks in, a multi-currency account, and an international shipping comparison for relocating belongings. See the affiliate-vetted shortlist below for current options.