Saw Yield
What is Saw Yield in Build A Ring Farm?
Saw Yield is the upgrade that decides how much of your harvest the rotating saw actually banks. It lives in the harvest formula as the (1 + saw bonus / 7) factor, multiplying everything else you've stacked.
Where the saw bonus lives in the formula
Saw Yield is the last factor in the harvest equation — and because it's multiplicative, it scales everything before it.
FinalPrice = unit × 1.25^(level-1) × cashMul × mutationMul × ringMul × (1 + sawBonus / 7)
The saw factor multiplies the full result, so a +7 saw bonus is worth the same +100% whether your plant is worth $1k or $1B. That's why it climbs the upgrade priority list as your unit prices grow.
Saw bonus → multiplier
Divide the saw bonus by 7 and add 1. That's your saw factor.
| Saw bonus | Saw factor | Income gain |
|---|---|---|
| +0 | 1.000× | — |
| +1 | 1.143× | +14% |
| +2 | 1.286× | +29% |
| +3 | 1.429× | +43% |
| +5 | 1.714× | +71% |
| +7 | 2.000× | +100% |
| +14 | 3.000× | +200% |
What it looks like in cash
Same plant — a 40k unit-price seed at Level 10 on the Outer Ring (19×) with a Rainbow mutation (5×) — with and without a +7 saw bonus.
No saw bonus (1.00×)
$28,312,206
With +7 saw bonus (2.00×)
$56,624,413
Related guides
The saw factor is one term in the harvest formula. These tools and guides cover the rest of the multiplier stack.
Profit calculator
Drop any seed into the calculator and see its real income with ring, mutation, and saw bonus layered on.
Ring placement guide
Why Outer Ring (19x) is wasted on commons, and which seeds belong on Base, Middle, and Outer.
Upgrade planner
Pick your stage and owned upgrades to get the single best next buy for saw, luck, sprinkler, and expansion.
Soil Quality
Community-observed multiplier evidence, unknown values, and a reproducible verification method.
All mutations
Wet (1.35x) to Eclipse (12x). Trigger events, per-plant rates, and shop prices.
Seed database
Every seed, every rarity, every unit price and grow time. Sortable and filterable.
Beginner guide
Five milestones from the first lever pull to Outer Ring endgame. Follow in order.