Stock Trading Calculator

A practical tool to calculate stock trading profits, losses, ROI, and transaction fees.

Interest Rate Converter

Quickly convert between annual interest rates, monthly interest rates, and daily interest rates. Supports both simple interest and effective annual rate modes.

Bulk Bank Card 3-Element Verification

Bulk verify user identities using name, bank card number, and ID number.

Stock P/E Ratio Calculator

Calculate stock P/E ratios online to quickly evaluate stock valuations and determine if shares are overvalued or undervalued.

Annuity Present Value Calculator

Quickly calculate the present value and future value of ordinary annuities, annuities due, and perpetuities, with synchronized output of annuity present value factors and future value factors to support pension, loan, and investment analysis.

Bulk Bank Card 4-Factor Verification

Bulk verify if the name, bank card number, ID number, and registered phone number match.

Simple Interest Calculator

Enter your principal, interest rate, and time period to quickly calculate simple interest and the total amount.

Rental Yield Calculator

Quickly calculate real estate rental yield and evaluate property investment value.

利率变动还款计算器

利率调整后，月供和利息会变多少？输入原贷款信息和新利率，快速对比等额本息/等额本金还款变化。

Historical K-Line Lookup

Query historical candlestick data from major global markets (open, high, low, close, volume) across stocks, forex, futures, precious metals, cryptocurrencies, indices and more, with support for minute/hourly/daily/weekly/monthly timeframes.

A-Share Adjusted K-Line Query

Enter a stock code to query forward-adjusted, backward-adjusted, or unadjusted historical K-line data for China A-shares.

Mutual Fund AUM Tracker

Enter a mutual fund ticker to quickly track historical AUM and fund size changes to make informed investment decisions.

China Precious Metal Price Calculator

Calculate the value of gold, silver, platinum, and palladium based on real-time quotes from Chinese exchanges. Enter the metal type and weight in grams to get instant pricing.

A-Share Candlestick Chart

Free online tool to query daily, weekly, and monthly candlestick charts for China A-shares. View price changes, trading volume, and adjusted historical prices.

银行存款利息计算器

在线计算银行存款利息，支持活期、定期、通知存款，输入本金、利率和期限，立刻算出利息和本息合计。

Invoice Verification

Verify VAT invoice authenticity. Enter the invoice code, number, and key details to instantly get validation results.

New Mutual Fund Screener

Free online new mutual fund screener. Quickly filter currently available new funds, compare subscription fees, check fund managers, and get key data for smarter investment decisions.

World Currency Symbols and Names

Look up currency names and commonly used symbols by country to identify monetary units on bills, quotes, and documents.

Bank CNAPS Code Lookup

Find Chinese bank branch CNAPS codes, addresses, and phone numbers by bank, card number, location, or keyword.

Bulk Corporate Bank Account Location Lookup

Bulk lookup branch locations for corporate bank accounts. Ideal for financial risk control and business audits.