100 tools · all free · nothing to install
Tricky Korean numbers,
Take-home salary— solved in 3 seconds.
100 free calculators citing Korean law and KS standards. No signup — search, type, get the answer.
All 100 tools — tap any to open
- Salary Take-Home
- 4 Insurances + Net Pay
- Weekly Rest Pay
- Unemployment Benefit
- Mandatory Training Checker
- Income Tax
- Capital Gains Tax
- Gift Tax
- Foreign Stock Tax
- Foreign Flat Tax (19%)
- School Grade
- Size Converter
- Name Romanizer
- Cost of Living
- Korean Romanizer
- Hangul Decomposer
- Health Insurance (NHIS)
- F-2-7 Residence Visa
- Jeonse ↔ Wolse + Scam Check
- Brokerage Fee
- Underwater Jeonse Risk
- Concrete
- Rebar Weight
- Paint
- Plaster Mortar
- Roof Pitch
- Plywood
- Siding
- Insulation R/U
- Span
- Truss & bevel cut
- Stairs
- Lumber Conversion
- Power Conversion
- Wire Size
- Pyeong ↔ m²
- Temperature
- JSON ↔ CSV
- Acquisition Tax
- BTU / AC Sizing
- Overdue Payment Notice
- Risk Assessment Builder
- Employment Contract
- Leave Request Form
- Meeting Minutes
- Real Estate Sale Contract
- Inspection and Test Plan
- Commencement Notice
- Daily Work Report
- Progress Payment Claim
- Severance
- Annual Leave
- Min Wage → Monthly
- Resignation Letter
- VAT
- Loan Calculator
- Freelancer 3.3%
- Compound Interest
- Prepayment Penalty
- Korean Age
- Gift Money
- Due Date
- Voltage & Plug
- Remittance Cost
- Korean Numbers
- Stay Days Tracker
- Pension Refund
- D-8 Startup Visa
- Apartment Area & Price/Pyeong
- Rent Cap (5%)
- Gravel
- Brick & Block
- Wallpaper
- Tile
- Roof Area
- Drywall
- OSB
- Studs
- Insulation Batts
- Rafter
- Material Quantity
- Deck & Fence
- Concrete Spec Finder
- Breaker Capacity
- Voltage Drop
- Percent
- Distance Converter
- Annual Car Tax
- Electricity Bill
- Quotation Builder
- Loan Note Builder
- Transaction Statement
- Expense Report
- Power of Attorney
- Construction Contract
- Lease Contract
- Safety Management Plan
- Completion Notice
- Construction Plan
- Business Number Validation
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11 categories · 100 tools — every calculator cites its legal or KS source
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Today's picks
Something new opens every day
One Korean destination, one dish, and the rule change worth knowing about — added daily.
Destination of the day
Jeonju Hanok Village
Come to Jeonju and you will end up in hanbok, guaranteed. Nearly 800 tile-roofed hanok pack the alleys, Gyeonggijeon and Jeondong Cathedral face off across the street, and one block over waits Jeonju bibimbap plus the Nambu Market night market — the day disappears fast.
Destination of the day
Dish of the day
Doenjang Jjigae
Doenjang jjigae is about as basic as a Korean soup gets. Its base is doenjang — soybeans boiled, formed into blocks, fermented, then steeped in brine — simmered with young squash, tofu, potato and onion. Where kimchi jjigae goes for sharpness, this one goes for a mellow, malty depth, which is why it is where people return after a run of spicy food. Home-fermented and commercial doenjang differ enough in salt and aroma that the same recipe produces different results.
Dish of the dayRule to watch
Spouse's childbirth leave usable from 50 days before the due date, plus a new miscarriage leave, from 18 September 2026
From 18 September 2026 three changes widen the support available to a worker whose spouse is giving birth. Spousal childbirth leave, previously usable only after the birth, can be taken from 50 days before the due date; a new leave is created for a spouse's miscarriage or stillbirth; and a worker may start parental leave before the child is born where the pregnant spouse faces a health risk such as miscarriage or premature birth. The same date narrows the grounds on which an employer can refuse reduced working hours for childcare.
Rule to watchStories behind the calculators
Field Notes
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