Công Cụ Miễn Phí
Các công cụ và máy tính miễn phí giúp đội nhóm tối ưu hóa công việc hàng ngày. Đơn giản, chính xác và sẵn sàng xuất file.
Dù bạn đang tính giờ và phút cho bảng lương hay theo dõi quãng đường công tác để hoàn trả chi phí, các máy tính trực tuyến miễn phí này xử lý phép tính ngay lập tức. Không cần bảng tính, không cần đăng ký, không cần thẻ tín dụng—chỉ cần nhập dữ liệu và xuất báo cáo chuyên nghiệp trong vài giây.
Mỗi công cụ chạy hoàn toàn trên trình duyệt, bảo vệ quyền riêng tư dữ liệu và xuất các file PDF hoặc CSV chỉn chu, sẵn sàng cho kế toán, báo cáo chi phí hoặc bảng lương. Sử dụng trên máy tính hoặc điện thoại để đảm bảo chính xác và tiết kiệm thời gian cho các phép tính hàng ngày.
Free Time Clock Tool
Simple web-based time clock for tracking work hours. Clock in, clock out, track job codes, and export timesheets to PDF or CSV instantly.
Free Time Card Calculator
Calculate weekly work hours, overtime, and estimated pay in seconds. Enter start and end times, subtract breaks, and export a payroll-ready timesheet — no sign-up required.
Free Time Edit Request Form
Submit timecard corrections with a structured time edit request form — document clock in/out changes, break adjustments, and reasons for edits, then export a professional PDF for manager approval.
Free Timesheet Calculator with Overtime
Enter start/end times or total hours, subtract breaks, and instantly see regular hours, overtime, double overtime, and estimated pay — all in one free timesheet.
Hours & Minutes Calculator
Add up daily shifts in hh:mm or decimal format, convert between time formats instantly, and calculate hourly rate totals. This lightweight calculator helps teams stay accurate without spreadsheets.
Free Salary to Hourly Calculator
Convert any salary — annual, monthly, bi-weekly, or weekly — into an hourly rate instantly. Adjust hours per week for full-time or part-time schedules and see the complete pay breakdown.
Free Pay Raise Calculator
Calculate how a pay raise impacts your income — enter your current hourly wage or salary and a raise percentage or dollar amount to instantly see your new annual, monthly, and weekly earnings.
Mileage Reimbursement Calculator
Skip handwritten logs: track trips digitally, auto-calculate reimbursements, then print or sign a polished PDF or CSV in seconds.
Free Asphalt Driveway Cost Calculator
Estimate asphalt driveway paving costs instantly — enter dimensions, choose asphalt type and thickness, add optional features, and get a detailed cost breakdown for new installations or replacements.
Free Weekly Schedule Planner
Plan employee work schedules for the week — assign shifts across Monday through Sunday, track team coverage, and export the completed schedule to PDF. No sign-up required.
Free 8-Hour Shift Calculator
Calculate when your 8-hour shift ends — enter a start time, shift duration, and break time to instantly see your shift end time. Works for day shifts, swing shifts, and overnight rotations.
Free Business Days Calculator
Count working days between two dates — exclude weekends, public holidays for 6 countries, and custom holidays. Includes all U.S. federal holidays, UK bank holidays, and more.
Military Time Converter
Instantly convert between standard 12-hour time (AM/PM) and 24-hour military time. Visualize the day with an interactive timeline and download a quick reference chart.
Free Absence Percentage Calculator
Calculate your employee absenteeism rate instantly. Enter total employees, workdays, and days absent to see what percentage of scheduled work time is lost — no sign-up required.
Free Full-Time Equivalent Calculator
Convert a mix of full-time and part-time hours into a single FTE number. Enter employee counts and weekly hours to instantly see your workforce capacity — no sign-up required.
Free Labor Cost Calculator
Calculate the true hourly cost of employing someone. Factor in wages, absent days, taxes, insurance, benefits, overtime, and supplies — then export results as a PDF.
Free Average Fixed Cost Calculator
Calculate the fixed cost per unit by dividing total fixed expenses by the number of units produced. Understand cost structures, optimize pricing, and improve production efficiency.
Free Contribution Margin Calculator
Calculate how much revenue remains after variable costs are subtracted from sales. See the contribution margin, contribution margin ratio, and profit generated — all in real time.
Free Cost of Doing Business Calculator
Calculate the total operating cost per day by dividing your annual business expenses by the number of billable days. Understand where money is spent and how operating costs impact profitability.
Free Cost of Goods Sold Calculator
Calculate the cost of goods sold (COGS) by combining beginning inventory, purchases, and ending inventory. Analyze gross profit, price products accurately, and manage inventory efficiently.
Free Break-Even Calculator
Determine how many units you need to sell or how much revenue is required to cover total costs without making a loss. Analyze margins, markup, and break-even points instantly.
Free Annual Income Calculator
Convert hourly wages or periodic pay into a clear yearly income estimate based on working hours and weeks. See net income after taxes instantly.
Free IRA Calculator
Estimate how your Traditional IRA, Roth IRA, SEP IRA, or SIMPLE IRA will grow over time — compare retirement savings, annual withdrawals, and take-home income based on contributions, return rate, and tax brackets.
Free Annuity Calculator
Calculate annuity payments, future value, present value, or required investment based on interest rate, time period, and payment frequency. Supports ordinary annuities, annuities due, and growing annuities.
Free Monthly Income Calculator
Convert hourly, daily, weekly, or annual pay into monthly income instantly. Adjust hours and days worked per week for accurate results.
Free Date Calculator
Calculate the difference between two dates or add and subtract days, weeks, months, or years from a specific date.
Free Checklist
Create custom checklists for any job or industry — add tasks, use pre-built templates, check off items, and export professional PDF reports. Free, no sign-up required.
Free Tip Pooling Calculator
Split tips fairly by role and hours worked. Set percentage allocations per role, lock them in, auto-split the rest, and export a transparent PDF report — no sign-up required.
