计算器目录

所有计算器

Browse every tool, save favorites on this device and return to calculators you used recently.

你的收藏清单

Favorites

Choose ☆ Save on any calculator to build a private shortlist.

继续上次使用

最近使用

Calculators you open will appear here on this device.

PRIVATE · THIS DEVICE ONLY

Recent calculations

Save a result to build a private calculation history on this device.

Nothing is uploaded. Results are stored only when you choose “Save to history.”

103 TOOLS

按类别浏览

Finance

Mortgage

估算完整的每月住房付款，并了解各项费用去向。

复利

预测储蓄如何通过定期投入和复合回报增长。

贷款还款

Estimate a fixed loan payment and compare two rate-and-term scenarios side by side.

汽车贷款

估算计入税费、首付和旧车折抵后的汽车融资金额。

房贷提前还款

了解每月额外还款如何缩短房贷期限并减少利息。

储蓄增长

使用年收益率、定期存款和时间预测储蓄余额。

Retirement

估算退休余额及用于规划的年度提款金额。

Salary

Convert hourly, daily, weekly, biweekly, semimonthly, monthly or annual pay into comparable gross amounts.

投资增长

根据初始余额、每月投入和回报率预测投资增长。

Inflation

估算未来价格以及货币购买力随时间的变化。

Amortization

建立完整的贷款摊还计划，并可加入额外还款。

购房负担能力

根据收入、债务、首付和住房成本估算可负担房价。

Net Worth

Calculate assets minus liabilities and understand your personal balance sheet.

Emergency Fund

Estimate how much cash to reserve for essential monthly expenses.

Credit Card Payoff

Estimate the fixed monthly payment needed to amortize a credit-card balance, plus total interest and total repayment cost.

Debt-to-Income Ratio

Calculate the debt-to-income ratio (DTI) lenders use to compare recurring monthly debt payments with gross monthly income.

Debt Snowball

Simulate multiple debts using the snowball repayment strategy, with a fixed total payment budget.

Debt Avalanche

Simulate multiple debts using the avalanche repayment strategy, with a fixed total payment budget.

APR

Estimate annual percentage rate from monthly loan cash flows and upfront or financed fees.

APY

Convert a nominal annual rate and compounding frequency into APY.

Interest Rate

Solve the nominal annual loan rate from principal, monthly payment and term.

Simple Interest

Calculate interest that does not compound over the selected term.

Mortgage Refinance

Estimate the new principal-and-interest payment after refinancing and compare it with your current mortgage payment.

Mortgage Closing Cost

Estimate closing costs as a percentage of a home purchase price.

Mortgage Points

Calculate the upfront dollar cost of mortgage discount points.

Rent vs Buy

Compare renting and buying over multiple years using home equity, transaction costs and invested cash-flow differences.

Down Payment

Convert a target down-payment percentage into cash and loan amounts.

PMI

Estimate monthly private mortgage insurance from balance and annual PMI rate.

Property Tax

Estimate annual and monthly property tax from assessed value and tax rate.

Home Equity

Calculate home equity and loan-to-value from value and mortgage balance.

HELOC Payment

Estimate an interest-only monthly HELOC payment from your balance and annual rate.

Biweekly Mortgage

Estimate a biweekly payment from a standard monthly mortgage payment.

Extra Mortgage Payment

Estimate annual extra principal created by a recurring extra payment.

Reverse Mortgage

Estimate a planning-level reverse-mortgage borrowing limit from home value.

Personal Loan

Calculate a fixed personal-loan payment, total repayment and total interest from the amount, APR and term.

Student Loan

Estimate the standard fixed payment and lifetime interest for a student-loan balance using a stated rate and repayment term.

Boat Loan

Estimate monthly payments for a boat purchase loan.

RV Loan

Estimate monthly payments and total interest for recreational vehicle financing.

Motorcycle Loan

Estimate a fixed monthly motorcycle loan payment and total borrowing cost.

Line of Credit

Estimate an interest-only monthly payment on a revolving credit balance.

Loan Comparison

Compare the monthly payment for two interest rates on the same loan.

Debt Consolidation

Estimate the payment on a single fixed-rate consolidation loan.

Loan Affordability

Estimate principal supported by a monthly payment, rate and term.

Hourly to Salary

Convert an hourly wage to weekly, monthly and annual gross pay using scheduled hours and paid working weeks.

Salary to Hourly

Convert annual salary into an equivalent hourly wage.

Overtime

Calculate weekly overtime pay using an overtime multiplier.

Paycheck

Estimate take-home pay from gross pay and a combined deduction rate.

Take-Home Pay

Estimate annual take-home pay by subtracting a combined percentage for taxes, payroll deductions and benefits from gross salary.

Bonus Tax

Estimate bonus take-home amount after a selected withholding rate.

Pay Raise

Calculate a new annual salary and pay increase after a percentage raise.

Commission

Calculate sales commission from eligible revenue and commission rate.

Severance Pay

Estimate severance from weekly pay and offered weeks.

Cost of Living

Estimate the salary needed after moving to a location with different costs.

CAGR

Calculate compound annual growth rate between a starting and ending value.

Dividend

Estimate annual dividend income from shares owned and dividend per share.

Dividend Yield

Calculate dividend yield from annual dividend and current share price.

Stock Average

Calculate the weighted average cost across two stock purchases.

Capital Gains

Calculate investment gain before tax from proceeds and cost basis.

Bond Yield

Estimate current bond yield from annual coupon and market price.

Real Return

Adjust a nominal investment return for inflation and purchasing power.

Portfolio Return

Estimate a two-asset weighted portfolio return from returns and allocation weights.

Income Tax

Estimate tax on a selected taxable-income amount using one stated effective rate for fast budgeting and scenario comparisons.

Self-Employment Tax

Estimate self-employment tax from net self-employment income and tax rate.

Capital Gains Tax

Estimate tax on a taxable capital gain using a planning-level tax rate.

Tax Bracket

Estimate tax at a selected marginal rate for planning.

Tax Refund

Compare tax payments and credits with estimated tax liability.

Tip Income Tax

Estimate the tax reserve needed for reported tip income and planning.

Business

利润率

即时将收入和成本转换为利润、利润率和成本占比。

投资回报率

衡量投资收益金额、回报率和年化结果。

Break-even

计算覆盖固定成本和变动成本所需的销量与收入。

Markup

比较售价、利润、加价率和利润率，同时避免混淆这些概念。

Business Loan

Estimate payment and borrowing cost for a fixed-rate business loan.

Freelance Rate

Estimate an hourly freelance rate from income target and billable hours.

Gross Profit

Calculate gross profit from revenue and cost of goods sold.

Net Profit

Calculate net profit after all business costs and operating expenses.

Contribution Margin

Calculate contribution margin from sales and variable costs.

Operating Margin

Calculate operating margin as operating income divided by revenue.

EBITDA

Estimate EBITDA by adding interest, tax, depreciation and amortization to net income.

Cash Flow

Calculate net cash flow from cash received and cash paid.

Inventory Turnover

Calculate how often average inventory is sold during a period.

Product Price

Set a selling price from unit cost and target markup.

Customer Acquisition Cost

Calculate marketing and sales spend per new customer.

Customer Lifetime Value

Estimate customer lifetime value from order value, purchases and lifespan.

Payroll Tax

Estimate employer payroll tax from taxable payroll and a combined rate.

VAT

Add value-added tax to a net price and see the tax amount and gross total.

GST

Add goods and services tax to a pre-tax amount and estimate the gross total.

Quarterly Tax

Divide estimated annual tax into four planning payments.

Everyday

小费与账单分摊

轻松计算小费并分摊最终账单，无需在餐桌旁费力心算。

日期差

计算两个日历日期之间的准确时间。

Discount

快速计算折后售价、节省金额和含税总额。

Age

计算两个日历日期之间以年、月、日表示的准确年龄。

销售税

计算销售税和含税价格，或由含税总额反推税前金额。

家居与建筑

家居与建筑

Paint

估算墙面面积、油漆用量和实际购买数量。

家居与建筑

Concrete

使用美制或公制单位估算混凝土体积，并加入实际损耗预留。

家居与建筑

Flooring

估算地面面积、包含损耗的材料用量及相应材料成本。

Health

BMI

估算身体质量指数，并查看成人标准筛查范围。

热量需求

根据年龄、性别、身高、体重、活动水平和体重目标估算每日热量需求。

体脂

使用美国海军围度法估算体脂率。

Math

Percentage

一步解决最常见的百分比问题。

单位换算

即时换算常用的长度、重量、体积和温度单位。

Graphing

Plot up to three functions, inspect their domain and estimate visible roots without sending formulas to a server.

Equation Solver

Solve linear and quadratic equations, including repeated, complex, identity and no-solution cases.

Calculator Builder

Create and share a private calculator from a formula using variables a, b and c.