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Daychain Lab

25 calculators · guided life paths · voice-ready assistant

A calculator that knows what comes next

Calculate it.
Understand it.
Use it.

Search for one tool or let Daychain walk you through a goal. Your useful numbers can carry forward so you do not keep entering the same information.

25individual calculators, connected into guided paths
⌕25 tools
Individual tools

All calculators

Every tool gets its own page when this becomes the public site.

Guided paths

Start with the goal, not the calculator.

Each path connects useful calculations in an order that makes sense. The numbers you already gave us can move forward automatically.

Build My Day

Give us the clock once. We turn it into a useful timeline, then hand you into the body calculators when you want more detail.

Your day, in one sentence

—

Add to your calendar

This prototype can prepare Google Calendar events and an .ics file. Direct one-tap background sync comes later when the public site has Google authorization connected.

Why this is different

The result is not just a number. Every step answers: what, why, and what next.

1
ClockWake + bedtime become the anchors.
2
CaffeineA conservative cutoff window, not a magic minute.
3
MealsEating window moves with your actual day.
4
Protein + waterUse the weight you already entered.
5
TomorrowSave the plan or adjust it without retyping everything.

My Body

A compact chain that reuses weight and age instead of asking again.

1
Calories & macrosSet the energy target.
2
Protein BuilderTranslate target into meals and food.
3
WaterHydration estimate using the same weight.
4
Weight timelineTurn a goal into a runway.
5
Body-fat estimateOptional circumference-based estimate.

The handoff

Enter weight once in My Numbers or say it to the voice assistant. Calories, protein, water and timeline can pick it up automatically.

My Money

Start with what you earn. Then decide what rent, debt payoff and saving actually fit.

1
Salary ↔ HourlyKnow the value of your working time.
2
PaycheckEstimate what actually lands.
3
RentBuild a housing target from cash flow.
4
DebtSee time and interest cost.
5
Savings + emergency fundGive the leftover money a job.

Useful, not preachy

The site should show the tradeoff in plain language. It does not pretend one rent percentage or one savings rule fits everyone.

My Drive

Measure your car first, then price the trip.

1
MPGCalculate actual fuel economy.
2
Fuel costTurn distance and gas price into dollars.
3
Road tripAdd hotel and food.

Later: live fuel data

On the public site we can connect a current fuel-price source or use location with permission. The calculator itself always keeps a manual price field so the user stays in control.

My Project

Pick the real project. We keep the measurements specific and hand costs into the money tools when useful.

17
ConcreteYards and bags.
18
PaintWall area and gallons.
19
FlooringType, packages and cost range.
21
RoofPitch, surface, squares and materials.
22
DeckExact cuts down to 1/16 inch.

Then price the decision

Once material quantity is known, the next natural handoff is exact discounts, tax and purchase totals.