kzk Freelance Rate & Quote Calculator

Find your real hourly rate and quote clients after platform fees and Korea's 3.3% withholding. Offline, no tracking.

Stop guessing what to charge. The kzk Rate & Quote Calculator turns your target monthly take-home pay into a minimum hourly rate, and turns any project into a quote that shows platform fees, withholding tax and your net income. Features • Minimum hourly rate from target take-home pay, monthly fixed costs and weekly billable hours • Project quote: hours × rate → platform fee, withholding amount, net income • Reverse mode: enter the net amount you want and get the quote to send your client • Upwork (10%) and Fiverr (20%) presets, or enter your own fee • 3.3% Korean business-income withholding by default, KRW display — USD/EUR/JPY also supported • Korean and English interface Privacy All calculations happen inside your browser. No account, no network requests, no analytics; settings are stored only on your device. Results are estimates and not tax or financial advice. Platform fees may change, so check the values shown on the actual platform. Not affiliated with Upwork, Fiverr or any other platform. Contact: https://kzk.kr/contact/