Personal Pension Calculator

A savings projection, not a pension award

This calculator models a hypothetical retirement fund in Chinese yuan (CNY, also written RMB). It combines a monthly salary, annual salary growth, employee contribution rate, employer contribution rate, assumed annual return, current age, retirement age, and expected lifespan. It then estimates separate employee and employer pools, their total, an equal monthly withdrawal, final modeled monthly salary, and a replacement rate.

Here, “employer contribution” means a percentage treated as money added to the modeled pool for the worker’s retirement. It does not establish that a real employer plan gives you ownership of that amount. The result is not a Chinese basic pension entitlement, a US Social Security estimate, or a projection of a named retirement account.

How the estimate is built

For each working year, the calculator grows the salary by the entered annual growth rate, applies each contribution percentage to that year’s salary, and then applies one full year of the assumed return to each pool. In compact form, each pool updates as: new balance = (prior balance + annual salary × contribution rate) × (1 + annual return). The employee and employer pools use the same salary and return assumptions but their own rates.

During retirement, the total is converted to a level monthly withdrawal over the years from retirement age to expected lifespan. With monthly rate r equal to annual return divided by 12 and n equal to retirement months, the estimate is payment = balance × r ÷ [1 − (1 + r)⁻ⁿ]. If the return is zero, it divides the balance evenly across those months. The replacement rate is that monthly payment divided by the modeled final monthly salary. Compound growth means returns are applied to prior returns as well as contributions; it is an assumption in this projection, not a promised outcome.

Read the outputs in context

The displayed monthly figure assumes the same return rate continues during both saving and withdrawal. The “employee pool” and “employer pool” are arithmetic buckets; the labels do not confirm legal ownership, vesting, tax treatment, or access rules. The replacement rate compares two modeled gross amounts and does not measure how much of your actual living expenses would be covered.

Set a consistent scenario

1. Choose the ages

   Enter a current age, a later retirement age, and an expected lifespan beyond retirement. These define the modeled saving and withdrawal periods; they do not determine eligibility to retire under any country’s rules.

2. Enter pay and growth

   Use current monthly salary in CNY. Choose whether your salary figure is gross or take-home pay, then keep that basis consistent when comparing runs. Salary growth is an annual percentage assumption.

3. Set both contribution rates

   Enter the employee rate and a separate employer rate. Use the employer field only for a plan contribution that you intentionally want to treat as part of this hypothetical pool. For a plan where employer money is unavailable to you, set that rate to zero for a more relevant comparison.

4. Compare return assumptions

   Enter an annual percentage and rerun the same scenario with lower and higher assumptions. The calculator applies it as a fixed rate throughout accumulation and retirement, so a single result can hide how sensitive the estimate is to that choice.

5. Check the outputs together

   Review both pools and the total before focusing on monthly withdrawals. Compare the monthly amount with the modeled final salary, then check the replacement rate. Save or share the input assumptions with the result so another person can understand what it represents.

Questions about the model

Limits to keep in view

This is an educational arithmetic estimate, not financial, tax, legal, investment, or government-benefit advice. It does not predict or guarantee returns or an actual pension payment.

• The model assumes salary grows at a steady annual rate, contributions are made each modeled year, and returns stay constant. It does not simulate market ups and downs, inflation, fees, taxes, missed contributions, contribution caps, or plan-specific withdrawal terms.
• The same annual return is applied once per saving year and is also divided by 12 for monthly withdrawals. Real timing and return patterns may differ, and equal withdrawals may not match a real plan.
• Expected lifespan is an input, not a certainty. Living longer than the entered age means funds would need to last longer than this calculation allows.
• Results are denominated in CNY and are not adjusted into today’s purchasing power. The employer pool is an assumed calculation bucket, not proof of a benefit or account balance.