How the CPS Calculator Works
Cash per second (CPS) is the fundamental currency of power in My Drill Farm. Our calculator lets you model effective income before you spend in-game cash on totems or Robux on Game Passes. Input a drill's base CPS from our Drills item page, select a skin tier, choose a mutation tier, toggle Speed Totem (+20%), and enable 2x Money to see final output.
The formula follows in-game multiplicative stacking: Effective CPS = Base CPS × Mutation × Skin × Totem × Game Pass. Additive bonuses from events may apply temporarily on top — check patch notes during holidays.
Plot-level calculations sum individual drill outputs. Enter your top six drills separately to see whether replacing a Steel tile with a new Ruby drop moves total CPS enough to justify the purchase.
Input Reference Values
Base CPS examples: Basic $1/s, Copper $5/s, Steel $50/s, Gold $200/s, Ruby $1K/s, Diamond $10K/s, Mythic $100K/s, Cosmic $1M/s. Mutation multipliers: Glowing 1.5x, Shiny 3x, Golden 8x, Diamond 20x, Rainbow 50x, Cosmic 100x.
Skin multipliers: Default 1x, Bronze 2x, Gold 5x, Diamond 15x, Rainbow 50x, Cosmic 100x. Totem: Speed Totem 1.2x (20% boost). Game Pass: 2x Money doubles final result.
These values mirror our game data tables. If Handcrafted Games rebalances numbers in an update, we sync the calculator and item pages together.
CPS Calculator
Total CPS
$500/s
Per hour: $1,800,000
Practical Decision Examples
Scenario A: You own a Rainbow skin and a Golden mutation Ruby drill ($1K/s × 8x × 50x = $400K/s). A new unmutated Mythic ($100K/s) with the same Rainbow skin yields $5M/s. The calculator proves the Mythic deserves the skin even if the Ruby feels "special."
Scenario B: Speed Totem costs $25,000. If it boosts three Mythic drills from $100M/s combined to $120M/s effective (+20%), calculate hours until the $25K investment pays back in extra crate purchases. If payback is under two sessions, buy the totem.
Scenario C: 2x Money pass evaluation. Double your entire plot CPS in the calculator. If doubled income funds a Mega Crate every login instead of every third login, the 199 R$ pass is mathematically justified.
Connecting Calculator Results to Gameplay
After modeling, act: move skins, reposition totems, buy passes, or keep grinding Wood Crates if projections show marginal gains. The calculator is a decision tool, not a substitute for playing.
Pair results with the Crate ROI Calculator when choosing between investing $15,000 in a Ruby crate versus $25,000 in a Speed Totem. CPS growth and purchase ROI together form a complete economy picture.
Share your calculator scenarios in our Discord community to compare notes with other farmers running similar Mythic mutation setups.
Related Pages
Frequently Asked Questions
What does the CPS Calculator measure?
It estimates effective cash per second for a drill or entire plot based on base CPS, equipped skin multiplier, mutation multiplier, Speed Totem bonus, and active Game Passes like 2x Money.
How do I calculate mutation and skin stacking?
Multiply base CPS × mutation multiplier × skin multiplier × totem bonus (if applicable) × Game Pass multiplier. Example: $100K/s × 20x mutation × 50x skin × 1.2 totem × 2 money pass.
Why should I use a CPS Calculator?
It helps you decide whether to apply a Rainbow skin to an existing Mythic drill or wait for a better base drill, and whether Speed Totem placement justifies the $25,000 cost.
Does the calculator include offline earnings?
CPS is the per-second rate. Multiply your calculated CPS by offline hours (capped by game limits) to estimate idle income. Use our Offline Earnings guide for cap details.
Which drill stats should I enter first?
Start with your highest base CPS drill — Mythic ($100K/s) or Cosmic ($1M/s) — then layer the mutation and skin you own or plan to acquire. Compare scenarios before committing cosmetics.