Quality is not duration
Ten distracted hours are not automatically more valuable than three attentive ones.
Shared planning
Subtract shared chores, errands, travel, and protected solo time from a measured shared free window.
SHARED TIME BUDGET
Start with hours when both people are genuinely free, then subtract named joint commitments and protected solo time. The remaining hours are planning capacity, not a prescription for relationship quality.
SHARED TIME BUDGET
Do not treat the remainder as owed time. The calculation makes schedule constraints visible; consent, rest, health, caregiving, and preferred connection styles remain outside the formula.

| Window item | Weekly hours | Treatment | Planning note |
|---|
DETAILED CALCULATION PROCESS
U=W-(C+E+T+S); gap=max(0,G-U); perDay=U/d
Measure only simultaneous free time, subtract four explicitly named uses, reject an overfilled window, and divide the usable remainder by whole planned days. The target is a comparison, never an obligation.
| Symbol | Meaning | Unit |
|---|---|---|
| W | Shared free window | hours/week |
| C | Shared chores | hours/week |
| E | Shared errands | hours/week |
| T | Shared travel | hours/week |
| S | Protected solo time | hours/week |
| U | Usable together time | hours/week |
| G | Together-time target | hours/week |
| d | Planned together days | days/week |
HOW TO USE
SUBJECT FUNDAMENTALS
MODEL AND FORMULA
Measure only simultaneous free time, subtract four explicitly named uses, reject an overfilled window, and divide the usable remainder by whole planned days. The target is a comparison, never an obligation.
DEEPER DECISION ANALYSIS
Ten distracted hours are not automatically more valuable than three attentive ones.
Removing solo or recovery time can make the schedule look fuller while making it less sustainable.
One person may have less control over shifts, care work, disability needs, or transit. Arithmetic cannot resolve that imbalance.
WORKED DECISION CASES
Reduce the shared window using actual overlap; do not conceal extra work inside chores.
Change only shared travel to see whether saved hours truly become usable together time.
TECHNICAL LANGUAGE
EVIDENCE AND DATA LINEAGE
Retain the week dates, both calendars, work and care commitments, travel estimates, recurring chores, the solo-time agreement, and notes about exceptions. A schedule snapshot should be revised rather than treated as a permanent norm.
LIMITS AND EXCLUSIONS
RELIABLE SOURCES
FREQUENTLY ASKED QUESTIONS
Separate free-time totals can overlap at different times and exaggerate joint capacity.
No. It is protected capacity, not a negative judgment.
The calculator stops so the conflict remains visible.
This model requires a positive comparison target; use the remainder alone if no target is appropriate.
It tests whether the remainder fits the proposed distribution.
This model subtracts it; change the classification only if both people intentionally define it otherwise.
IMPORTANT NOTE
Use the result to expose calendar constraints and support a voluntary conversation. Do not use it to pressure, surveil, or score a partner. Seek appropriate professional help for health, safety, or relationship concerns.
RELATED CALCULATORS