Investment Return Calculator
Separate your contributions from modeled growth and test long-term assumptions.
Verify this calculatorVerified
See what the result uses—and what it cannot know.
Sumvoro calculates deterministically from the visible inputs. It does not invent lender terms, local rules, market values, medical facts, or professional judgments.
- 1 · InputsCheck every entered value against the latest statement, quote, measurement, or official source.
- 2 · Formula
Future value compounds the starting balance and recurring contributions using the selected rate convention. - 3 · SensitivityUse Insights to run a lower and higher case. If the conclusion changes easily, collect better information or leave more margin.
- 4 · ScopeThis tool is maintained and covered by automated calculation tests. Provider timing, rounding, and omitted facts can still change a real-world result.
- Formula release
- 2026.10-r4
- Release date
- October 10, 2026
- Review status
- Verified
- Source review
- September 12, 2026
Investment Return calculator
Show nominal growth and the assumptions that can reduce it rather than presenting one return as guaranteed.
- Test difficult and expected returns.
- Include fees.
- Compare real and nominal results.
Optional readingLearn how this calculator works
How the investment return calculator works
Project an investment balance using contributions, return, fees, inflation, and contribution timing.
Future value compounds the starting balance and recurring contributions using the selected rate convention.
Read our calculation methodology and limitations.
Example
Project $25,000 plus $500 monthly over 15 years at an assumed annual return.
What affects the result
- Returns are not constant or guaranteed.
- Fees and taxes can reduce compounding.
- Inflation changes future purchasing power.
Frequently asked questions
Is this a forecast?
No. It is a mathematical projection using constant assumptions.
Can returns be negative?
The primary rate field accepts nonnegative long-run assumptions; Advanced fee and tax drags can reduce net modeled growth.