RICE vs FVI: Product Prioritization Compared
RICE got you to a ranked list. FVI gets you a number finance will defend.
Scoring · 10 min
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RICE = (R × I × C) ÷ E vs FVI = ($ × Confidence) ÷ Eng-weeks
- Inputs
- Reach · Impact / $ value · Confidence (0–1) · Effort
- Output
- RICE: abstract rank · FVI: $/eng-week vs squad cost
- When to use
- When finance asks 'how much money is that, exactly?' and 'Impact = 3' isn't an answer.
- Replaces
- RICE Impact debates where the loudest VP wins.
RICE — Reach, Impact, Confidence, Effort — is the most-used product prioritization framework on the planet. It's fast, it's good enough for a team's weekly grooming, and it falls apart the moment a CFO asks 'how much money is that, exactly?' FVI (Forced-Value Index) keeps RICE's confidence haircut but swaps the 1–10 Impact score for an explicit dollar value. Same ten minutes of work, an output you can take to a board.
The RICE formula
RICE = (Reach × Impact × Confidence) ÷ Effort. Reach is users touched per quarter. Impact is a 0.25–3 multiplier (minimal to massive). Confidence is a 0–1 haircut. Effort is person-months. The output is an abstract score — useful for ranking, useless for defending a number to finance.
The FVI formula
FVI = (Expected $ Value × Confidence) ÷ Effort (eng-weeks). Expected value is in dollars — modelled, not guessed. Confidence is the same 0–1 haircut as RICE. Effort is in engineering weeks. Output: dollars per engineering week, directly comparable to your fully-loaded squad cost.
Where RICE breaks
Impact hides every assumption. A 'massive' (3) on a checkout improvement and a 'massive' (3) on an AI feature score the same — but one moves $4M of GMV and the other moves $90K. The room debates the rank instead of the input, and the loudest VP wins.
When to use which
Use RICE for weekly grooming of a single team's backlog — speed matters more than precision. Use FVI for quarterly planning, board-level prioritization, and anything that competes for budget against a non-product investment (a hire, an acquisition, a marketing spend). If finance is in the room, FVI.
Worked example
New onboarding flow. RICE: Reach 8,000 users/qtr × Impact 2 × Confidence 0.7 ÷ Effort 4 person-months = score 2,800. FVI: Expected value $180K (1% activation lift × $18M ARR base) × Confidence 0.7 ÷ Effort 6 eng-weeks = $21K/eng-week. The FVI number lines up against your squad's $14K/eng-week fully-loaded cost — green-light, with a 1.5× margin.