on ₩50M salary?
• National Pension: ₩187,500
• Health Insurance: ₩147,916
• Income Tax (incl. local): ₩276,600
Tap the calculator shortcut below to compute yours.
Just Ask
Modoo AI
Type a question in plain language and get instant results for salary, tax, loans, and more.
- On-device AI (Gemma 4) — works without internet
- Your input never leaves the device — completely private
- Covers salary, tax, loans, retirement, BMI & more
- One tap to jump to the full calculator from AI results
16 Calculators, One App
Everything you need for work, finances, health, and daily life — all in one place.
Take-Home Pay
Enter your gross salary to instantly see your net pay after insurance and income tax. Includes a side-by-side salary comparison tab.
Social Insurance
Employee & employer contributions, freelancer & self-employed rates
VAT Calculator
Instantly split supply price and VAT. Supports standard, zero-rate & exempt types
Income Tax
Estimate income tax using standard or itemised expense ratios (2026 rates)
Stock Returns
Profit & return rate with domestic/overseas transaction tax & commission
Loan Calculator
Supports equal payment, equal principal & bullet repayment. View the full amortisation schedule. DSR calculation included.
Real Estate Tax
Acquisition tax, capital gains tax & rental deposit loan limit in one app
Severance Pay
Enter your start date, end date & monthly pay → instant severance estimate. Shows tenure, total days worked & average daily wage in detail.
Minimum Wage
2026 hourly rate ₩10,030. Calculates overtime, night & holiday pay
Annual Leave
Auto-calculate statutory leave from start date; check remaining & next-year allowance
BMI & Ideal Weight
BMI score with obesity gauge and healthy weight range guidance
Calorie (TDEE)
BMR & TDEE via Mifflin-St Jeor; target calories for loss, maintain or gain
Date Calculator
Days between dates, business days excluding holidays, date ± N days
Unit Converter
Length, weight, temperature, area, volume & speed — including imperial units
Discount & Tip
Discount rate, reverse calc, split bill & tip — per-person share included
Basic Calculator
Arithmetic & percentage — always fast, always ready
App Screenshots
Clean design. Ready to use the moment you open it.
See your real take-home pay
Instantly calculates your net pay after insurance and income tax. Detailed deduction breakdown — useful for salary negotiations.
- Accurate tax calc based on 2026 salary table
- Set number of dependants for personalised results
- Side-by-side salary comparison tab included
VAT, calculated instantly
Split supply price and VAT in seconds. Perfect for business invoices and tax returns.
- Forward & reverse VAT calculation
- Standard, zero-rate & exempt types supported
- Detailed breakdown of supply price, VAT & total
Understand your loan at a glance
See the full amortisation schedule per instalment and know your total interest burden upfront.
- Equal payment, equal principal & bullet — 3 types
- Full repayment schedule visible at a glance
- DSR (Debt Service Ratio) calculation included
Know your severance pay
Just enter your start and end dates — severance is calculated automatically. Check it before you leave or switch jobs.
- Auto-calculates tenure & total days worked
- Accurate result based on average daily wage
- Based on official statutory formula
Just ask Modoo AI
Type tax, salary or loan questions in plain language and get instant answers.
- On-device AI (Gemma 4) — no internet needed
- Input data never sent to external servers
- Shortcut button to the full calculator below each answer
Housing subscription score
Check your housing subscription priority score instantly from homelessness period, dependants & savings account tenure.
- Auto score per category out of 84 points
- Guidance on optimal lottery vs priority strategy
- Itemised score breakdown displayed
Compare salaries side by side
See the real difference in take-home pay between two salaries. Know the true gap before negotiating a job offer.
- Monthly & annual net pay compared simultaneously
- Set dependants separately for each salary
- Switch directly from the Take-Home Pay tab
Why Modoo Calculator?
3 reasons to trust it
2026 Rates, Always Current
National pension ceiling, long-term care rate, minimum wage and more — we update legal figures every year so your results are always accurate.
On-Device AI
Powered by Gemma 4 running entirely on your phone. No internet required, and your questions never reach any server.
Complete Privacy
Salary, loan amounts, health data — all sensitive inputs are processed only on your device. No server storage. No cloud upload.