Kefiw

Archived noindex page. Kefiw's public focus is Property decision help.

Archived page

This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

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Bio-Fuel

Compare calories per dollar and how long a basic food budget lasts.

Pillars plot kcal/$ per item. Rice, beans, peanut butter pulse green (efficient staples); ready-meals render in depleted magenta (luxury fuel). Total calories translate to days-of-uptime at the 2,000 kcal/day survival baseline.

Part of: Saving & Spending Calculators

Start below
Fields marked optional can be skipped; results update as you type
BIO_FUEL
Kilocalories per dollar — rank food by thermodynamic return
Total spend
$29.00
Total kcal
17,900
Days of uptime
8.9
at 2000 kcal/day
Weekly budget
$40.00
FOOD ITEMS
$
kcal
prot
$
kcal
prot
$
kcal
prot
$
kcal
prot
$
kcal
prot
EFFICIENCY PILLAR · kcal per $1
1333
Rice (5lb)
840
Peanut butter (jar)
800
Black beans (2lb)
300
Frozen pizza
88
Ready-meal bowl
PER-ITEM BREAKDOWN
#1
Rice (5lb)
1333 kcal/$
4.0 days
23.3 g prot/$
#2
Peanut butter (jar)
840 kcal/$
2.1 days
32.0 g prot/$
#3
Black beans (2lb)
800 kcal/$
1.6 days
55.0 g prot/$
#4
Frozen pizza
300 kcal/$
0.9 days
10.0 g prot/$
#5
Ready-meal bowl
88 kcal/$
0.3 days
3.8 g prot/$
▸ METHODOLOGY
kcal/$ = total calories ÷ price. Days of uptime = total kcal ÷ 2,000 (daily baseline). Pillars ≥400 kcal/$ pulse green (staple); ≥150 amber; below that magenta (luxury fuel). Budget helps size the weekly run.

How to use

  1. Add food items with price, calories, and protein.
  2. Read the efficiency pillars — taller green = more fuel per dollar.
  3. Check total days-of-uptime against your budget.

Examples

Rice (5lb) for $6
8,000 kcal ÷ $6 = 1,333 kcal/$ — 4.0 days of survival food for six bucks.
Ready-meal for $8
700 kcal ÷ $8 = 88 kcal/$ — 0.35 days of uptime. Luxury fuel.

Before you trust the result

Check the inputs that matter most: dates, rates, units, costs, and any optional fields you skipped. A calculator can only work with the numbers entered here, so use the result as a decision check rather than a final answer when money, health, tax, legal, or safety consequences are involved.

If the result feels surprising, change one input at a time and watch which number moves. That usually shows the real lever behind the decision.

Next up

Macros set. Now anchor the total calorie target.Calorie-per-Dollar → Fuel plan drafted. Now check your metabolic floor.Metabolic Floor · BMR / TDEE →

Frequently asked questions

› Is 2,000 kcal the right baseline? Trust & accuracy

It's the US dietary reference intake — a reasonable anchor for an adult. Adjust mentally for your own maintenance.

› What about protein and micronutrients?

Tool tracks protein-per-dollar as a secondary column. Beans and peanut butter top both metrics.

Tips & related reading

See the Saving & Spending Calculators hub →

Tips & how-tos

Relevant links

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