When you just need the number
Calculations with awkward rules, done from a few inputs. Every calculator shows its assumptions and the date its rules were checked.
Korea finance & tax
- Korea salary after taxEnter your gross annual salary and see what actually lands in your account each month, with each deduction your employer withholds shown separately.
- Severance pay (퇴직금)Anyone employed in Korea for a year or more is owed severance.
- Unused annual leave payUnused annual leave in Korea is paid out in cash.
- Home acquisition tax (취득세)Everything you owe at closing when buying a home in Korea: acquisition tax plus its two surtaxes.
- Loan prepayment fee (중도상환수수료)Korean lenders charge a fee for early repayment that shrinks linearly over the fee period — usually zero after three years.
- Jeonse → monthly rentKorean landlords can convert part of a jeonse deposit into monthly rent, but the law caps the conversion rate at the Bank of Korea base rate plus 2 points.
Hobbies
- 3D print costPaste the weight and time from your slicer and get the full cost: filament, electricity and printer wear.
- Running pace & race predictorEnter a recent run and get your pace plus predicted times at other distances, using the Riegel formula with exponent 1.06.
- Sourdough hydrationMost recipes quote hydration without counting the starter.
Finance basics
- Loan paymentEqual monthly payments (amortizing) — see what you pay each month and how much of it is interest over the life of the loan.