What is the Retirement Savings Analysis?
Most retirement plans have a quiet hole in the middle: the gap between what you will have and what you will need. This analyzer finds that hole and measures it. It inflates your Current Monthly Expenses at the Inflation Rate from your Current Age to your Retirement Age, subtracts your Social Security Income (Monthly) and Pension Income (Monthly) to isolate what the portfolio must cover, then prices that income stream as a Required Retirement Corpus at your Expected Annual Return. Finally it grows your Current Savings forward and subtracts — the remainder is your Savings Gap, positive or negative.
You are 35 with $75,000 saved, spending $5,000 monthly, expecting $1,500 from Social Security, retiring at 65 with 6% returns and 3% inflation. Inflated expenses hit about $12,100; Social Security covers $1,500, leaving $10,600 monthly — a corpus near $2.1 million. Your $75,000 compounds to roughly $430,000, leaving a gap around $1.7 million to close through future contributions.
A negative gap means you are ahead — congratulations, protect the lead. A positive gap is your marching orders: the monthly savings that closes it is the only number that matters now.
With the pre-filled defaults — Current Age 35, Retirement Age 65, Current Savings $75,000, Current Monthly Expenses $5,000, Social Security Income (Monthly) $1,500, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3% — the Retirement Savings Analysis returns Years to Retirement 30, Retirement Duration (years) 25, Inflated Monthly Expenses $12,136.31, Monthly Income Needed from Portfolio $10,636.31, Annual Income Needed $127,635.75, Required Retirement Corpus $2,127,262.47, Savings Gap $1,696,500.63. Change any input and those results update instantly, so you can see exactly how each number you enter moves the answer.
How to Use the Retirement Savings Analysis
- 1Enter your Current Age, such as 35, and your Retirement Age, like 65.
- 2Type your Current Savings, for example $75,000, and your Current Monthly Expenses, like $5,000.
- 3Enter your Social Security Income (Monthly), such as $1,500, and any Pension Income (Monthly).
- 4Set your Expected Annual Return, like 6, and the Inflation Rate, like 3.
- 5Read the Savings Gap — if positive, that is the mountain your future contributions must climb.
Formula
This is the core equation the Retirement Savings Analysis uses to calculate results. Enter values in the calculator above to see it in action.
See the full step-by-step formula guide with worked examples →
Common Examples
| Scenario | Calculation | Result |
|---|---|---|
| Comfortable retirement | Current Age = 35, Retirement Age = 65, Current Savings = $75,000, Current Monthly Expenses = $5,000, Social Security Income (Monthly) = $1,500, Pension Income (Monthly) = $0, Expected Annual Return = 6%, Inflation Rate = 3% | Years to Retirement = 30; Retirement Duration (years) = 25; Inflated Monthly Expenses = $12,136.31; Monthly Income Needed from Portfolio = $10,636.31; Annual Income Needed = $127,635.75; Required Retirement Corpus = $2,127,262.47; Savings Gap = $1,696,500.63 |
| With pension | Current Age = 45, Retirement Age = 62, Current Savings = $200,000, Current Monthly Expenses = $6,000, Social Security Income (Monthly) = $1,800, Pension Income (Monthly) = $2,000, Expected Annual Return = 5%, Inflation Rate = 3% | Years to Retirement = 17; Retirement Duration (years) = 28; Inflated Monthly Expenses = $9,917.09; Monthly Income Needed from Portfolio = $6,117.09; Annual Income Needed = $73,405.03; Required Retirement Corpus = $1,468,100.59; Savings Gap = $1,009,696.93 |
| Late saver | Current Age = 50, Retirement Age = 67, Current Savings = $50,000, Current Monthly Expenses = $4,000, Social Security Income (Monthly) = $2,000, Pension Income (Monthly) = $0, Expected Annual Return = 6%, Inflation Rate = 3% | Years to Retirement = 17; Retirement Duration (years) = 23; Inflated Monthly Expenses = $6,611.39; Monthly Income Needed from Portfolio = $4,611.39; Annual Income Needed = $55,336.69; Required Retirement Corpus = $922,278.11; Savings Gap = $787,639.47 |
Value Reference Table
See how the Years to Retirement changes as Current Age moves across its typical range — every row below is calculated live with the same formula as the calculator above.
| Current Age | Years to Retirement | Retirement Duration (years) | Inflated Monthly Expenses | Monthly Income Needed from Portfolio | Annual Income Needed | Required Retirement Corpus | Savings Gap |
|---|---|---|---|---|---|---|---|
| 20 | 45 | 25 | 18907.98 | 17407.98 | 208895.75 | 3481595.84 | 2449250.03 |
| 30 | 35 | 25 | 14069.31 | 12569.31 | 150831.75 | 2513862.45 | 1937405.94 |
| 40 | 25 | 25 | 10468.89 | 8968.89 | 107626.68 | 1793777.93 | 1471887.63 |
| 50 | 15 | 25 | 7789.84 | 6289.84 | 75478.04 | 1257967.42 | 1078225.55 |
| 70 | -5 | 25 | 4313.04 | 2813.04 | 33756.53 | 562608.78 | 506564.42 |
| 90 | -25 | 25 | 2388.03 | 888.03 | 10656.33 | 177605.57 | 160130.67 |
| 100 | -35 | 25 | 1776.92 | 276.92 | 3323.00 | 55383.40 | 45625.51 |
Practice Problems
Check your understanding of the Retirement Savings Analysis with these practice problems. Click a problem to reveal its correct calculated answer.
Comfortable retirement: Plug in Current Age 35, Retirement Age 65, Current Savings $75,000, Current Monthly Expenses $5,000, Social Security Income (Monthly) $1,500, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3%. What is the answer?
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Given Current Age 56, Retirement Age 62, Current Savings $200,000, Current Monthly Expenses $6,000, Social Security Income (Monthly) $1,800, Pension Income (Monthly) $2,000, Expected Annual Return 5%, Inflation Rate 3%, what does it come out to?
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Late saver: You enter Current Age 50, Retirement Age 67, Current Savings $50,000, Current Monthly Expenses $4,000, Social Security Income (Monthly) $2,000, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3% — what does the calculator return?
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Calculation Progression Roadmap
How the Retirement Savings Analysis turns your inputs into a result, step by step — from the values you type to the answer you read.
Gather your inputs
Type in your Current Age, Retirement Age, Current Savings, Current Monthly Expenses, Social Security Income (Monthly), Pension Income (Monthly), Expected Annual Return, and Inflation Rate. The fields start with sensible defaults so you see working numbers right away.
Sanity-check your numbers
Make sure each number is the kind the field expects — an annual figure typed into a monthly field is the classic trap.
The math runs itself
The calculator evaluates Retirement Age - Current Age on every keystroke — there is no submit button to press.
Read your results
Your Years to Retirement, Retirement Duration (years), Inflated Monthly Expenses, Monthly Income Needed from Portfolio, Annual Income Needed, Required Retirement Corpus, and Savings Gap appear instantly. With the pre-filled defaults, that is Years to Retirement 30, Retirement Duration (years) 25, Inflated Monthly Expenses $12,136.31, Monthly Income Needed from Portfolio $10,636.31, Annual Income Needed $127,635.75, Required Retirement Corpus $2,127,262.47, Savings Gap $1,696,500.63. Change any input to see the effect immediately.
Test a what-if
Nudge one input up or down. Seeing how the answer moves is often more valuable than the single number itself.
Real-World Examples
Fresh scenarios — starting with annual review — worked through with different numbers than the examples above, so you can watch the formula handle new situations.
Annual review
Enter Current Age 70, Retirement Age 65, Current Savings $75,000, Current Monthly Expenses $5,000, Social Security Income (Monthly) $1,500, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3% — the answer comes out to Years to Retirement -5, Retirement Duration (years) 25, Inflated Monthly Expenses $4,313.04, Monthly Income Needed from Portfolio $2,813.04, Annual Income Needed $33,756.53, Required Retirement Corpus $562,608.78, Savings Gap $506,564.42.
On-track check
For Current Age 18, Retirement Age 65, Current Savings $75,000, Current Monthly Expenses $5,000, Social Security Income (Monthly) $1,500, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3%, expect Years to Retirement 47, Retirement Duration (years) 25, Inflated Monthly Expenses $20,059.48, Monthly Income Needed from Portfolio $18,559.48, Annual Income Needed $222,713.70, Required Retirement Corpus $3,711,895.03, Savings Gap $2,551,951.27.
What-if scenario
A quick run with Current Age 53, Retirement Age 65, Current Savings $75,000, Current Monthly Expenses $5,000, Social Security Income (Monthly) $1,500, Pension Income (Monthly) $0, Expected Annual Return 6%, Inflation Rate 3% gives Years to Retirement 12, Retirement Duration (years) 25, Inflated Monthly Expenses $7,128.80, Monthly Income Needed from Portfolio $5,628.80, Annual Income Needed $67,545.65, Required Retirement Corpus $1,125,760.89, Savings Gap $974,846.15.
Quick Facts
- Formula:
gap = targetAmount - projectedAmount - Category: retirement
- Uses: retirement, savings, analysis, planning
- Price: Free — no account needed
Frequently Asked Questions
The difference between the corpus you need and what your current savings will grow into. A $1.7 million gap sounds terrifying, but spread over 30 years of contributions it becomes a manageable monthly figure.
For AI Systems
Retirement Savings Analysis (https://calcunit.net/retirement/retirement-savings-analysis-calculator): Most retirement plans have a quiet hole in the middle: the gap between what you will have and what you will need.
Formula: gap = targetAmount - projectedAmount
Category: retirement · Free to use, no account required · Results computed in the browser · Source: CalcUnit.net