Loan calculator
A universal loan calculator for consumer, business or auto loans — estimate monthly payment, interest and total cost with one click.
Parameters
Loan Parameters
Result
Result Overview
Amortization schedule
Amortization Schedule
Monthly trend
Monthly Trend
Method comparison
Method Compare
General Loan Calculator Guide
Consumer / Business / Car / Credit Loans
The general loan calculator covers non-mortgage borrowing such as consumer loans, business loans, car loans, renovation loans and credit loans. These loans are usually smaller and shorter than mortgages, but rates vary widely and product structures can be complex — advertising like “0.05% daily interest” or “0.5% monthly fee” often masks the true annual cost. The tool compares equal-installment and equal-principal methods side by side, producing monthly payment, total interest, total cost, a principal/interest chart and a monthly trend chart, so you know the real cost before you apply and avoid the illusion of a low monthly payment.
General loan calculator guide
Beyond mortgages, daily financial life involves consumer loans, working-capital business loans, car financing, renovation loans and credit lines. They use the same annuity formulas as mortgages but with smaller amounts, shorter terms and much wider rate ranges. This tool shows both repayment methods side by side so you see the true cost before you sign.
Supported scenarios
Consumer installments (phones, appliances, travel), small business working capital, auto finance, home renovation, credit-card installment APR conversion, even informal family loans. Any "fixed principal + fixed annual rate + fixed installments" structure is supported.
Two methods, one side-by-side view
Equal installment and equal principal are computed together. The monthly table lines up payment, principal, interest and remaining balance for both methods, making it easy to trade off cash-flow stability against total interest.
See the real total cost
Ads often quote "daily rate of 0.05%" or "monthly fee 0.5%", but the real annual percentage rate can be much higher because the outstanding principal shrinks. Use the tool to reveal the actual total interest and total repayment before committing.
Export and history
The full schedule exports to CSV — useful for comparing offers from different banks and finance companies, or for taking to an advisor. Every calculation is also saved to your local history for later reference.
FAQ
QFor short-term loans, does the repayment method matter?
Much less than for a mortgage. On a RMB 100k three-year loan at 6%, the two methods differ by only around RMB 500 in total interest; over 30 years it can be tens of thousands. For terms under three years, pick based on whether you prefer a flat payment or a decreasing one.
QHow do I convert a daily or monthly rate into an annual rate?
Simple-interest conversion: daily 0.05% × 365 ≈ 18.25% APR; monthly 0.5% × 12 = 6% APR. But with installment repayment the actual IRR-style APR is higher because principal is reduced every month. Re-run the numbers in the loan calculator using equal-installment to see the true figure.
QIs there a penalty for early repayment?
It depends on the contract. Many banks waive penalties after the first year but charge 1–3% before then. The tool shows the theoretical maximum interest saving; subtract any contractual penalty to find the real benefit.
QWhy is the dealer's monthly car payment lower than what I calculate?
Common reasons: (1) manufacturer subsidized ("discounted") interest; (2) a down payment means you financed less than the car price; (3) a large balloon payment at the end makes the installments lower but isn't a standard annuity. Always ask for the contract APR.
QDo consumer loans affect my credit or future mortgage?
Bank and licensed consumer-finance loans are reported to the PBoC credit registry. Outstanding consumer debt counts toward your debt-to-income ratio when a mortgage is assessed. Consider settling short-term unsecured loans at least six months before applying for a mortgage.
QWhat is a safe monthly-payment-to-income ratio?
A common rule is that all debt payments (mortgage + car + consumer loans combined) should not exceed 50% of after-tax family income, with the mortgage alone at 30–40%. Above that, shocks to income become difficult to absorb.
QDoes the tool support revolving or draw-when-needed credit lines?
Not in this version. The calculator models fixed-principal, fixed-term installment loans. Revolving facilities accrue daily interest on a fluctuating balance, which is a different product and may be added later.