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High-Precision Micro-Utility Suite for Makers, Creators, Athletes & Investors

13 instant, privacy-first, zero-bloat calculators designed for real-world workflows.

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🛠️ Maker & Craft Utilities

FLAGSHIP TOOL
3D Print Cost & Pricing Estimator
Calculate exact spool $/g, power wattage, machine wear, prep labor & commercial retail markup margins.
🔍 Spec Preview: Filament, Power & Labor Amortization
DOUGH MATH
Baker's Pizza Dough Math
Scale pizza dough flour, hydration %, yeast & salt instantly.
🔍 Hydration & Yeast Ratios

🎬 Creator & Media Utilities

FLAGSHIP TOOL
Video Export Bitrate & File Size Forecast
Forecast export MB/GB file sizes across H.264, H.265, and ProRes codecs with quality gauge meters.
🔍 Spec Preview: 4K, 1080p, ProRes & Bitrate Density
OPTICS
Depth of Field & Optics
Calculate hyperfocal distance & focus limits.
🔍 Crop Factor & CoC
EXPOSURE
ND Filter & Camera Exposure
Compensate shutter speeds across 1-15 ND stops.
🔍 Long Exposure & Reciprocity
DISPLAY
Aspect Ratio Converter
Convert resolution pixels & megapixels.
🔍 16:9, 9:16 & 21:9
AUDIO MATH
Audio File Size & Bitrate
Calculate WAV, MP3, AAC & FLAC audio file sizes.
🔍 Sample Rates & Bit Depths

🏋️ Fitness & Body Utilities

FLAGSHIP TOOL
TDEE & Recomp Macro Splitter
Calculate BMR, TDEE, surplus/deficit calorie targets, and high-protein macronutrient splits.
🔍 Spec Preview: Mifflin-St Jeor & Protein Synthesis Ratios
STRENGTH
1RM Strength Matrix
Estimated 1-rep max & percentage tables.
🔍 Epley & Brzycki Avg
FLAGSHIP TOOL
FFMI & Maximum Muscular Potential
Calculate Fat-Free Mass Index (FFMI), height-normalized score, and natural lean mass limits.
🔍 Spec Preview: Normalized FFMI & Genetic Ceiling
COMPOSITION
US Navy Body Fat %
Circumference-based fat mass & LBM.
🔍 Navy Algorithmic Model

📈 Finance & Trading Utilities

FLAGSHIP TOOL
Stock Average Down & Break-Even
Calculate combined average share price basis, total capital invested, and percentage cost reductions.
🔍 Spec Preview: Multi-Tranche Cost Basis & Break-Even
INVESTING
Dividend DRIP Forecast
Compound interest growth & annual income.
🔍 Yield & Growth Forecast

3D Print Cost & Commercial Pricing Estimator

Calculate exact filament expenditure, energy consumption, machine wear, labor, and profit margins.

Presets:
Print & Material Parameters
$
grams
125 g
grams
hrs
mins

Watts
$/kWh
$/hour
$/hour
mins
%
60% Markup
Recommended Sale Price
$16.88 USD
Includes $6.33 net profit (37.5% margin)
Net Production Cost
$9.77
Total With Risk Buffer
$10.55
Filament Expense
$3.12
Electricity Expense
$0.13
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Saved 3D Print Calculation History
TimestampWeight / TimeTotal CostPrice QuoteAction
No saved calculations.
Filament Material Benchmark Guide
MaterialAvg Cost/kgDensityPrint Temp
PLA Standard$22 - $281.24 g/cm³190°C - 215°C
PETG Tough$26 - $341.27 g/cm³230°C - 250°C
ABS / ASA$28 - $381.04 g/cm³240°C - 260°C
TPU Flexible$32 - $451.21 g/cm³210°C - 230°C
SLA UV Resin$40 - $651.15 g/cm³UV 405nm
3D Print Farm Rules of Thumb

Machine Depreciation: Desktop FDM printers depreciate at ~$0.40/hour over a 3,000-hour operating lifespan.

Failure Buffer: Factor 8%–12% risk buffer to account for support waste and bed detachments.

3D Print Cost Formula

Total Cost = (Filament_g × $/g) + (kWh × Rate) + (Hours × Wear/hr) + Labor

Frequently Asked Questions

What retail markup is standard?
50% to 150% is standard for production parts; up to 300% for rapid prototypes.

Baker's Percentage & Pizza Dough Calculator

Scale pizza dough batches using baker's percentages.

Dough Formula Parameters
balls
grams
65%
%
%
%
%
Total Flour Required
590 g
Total Batch Mass: 1,000g
Water
383 g
Salt
16.5 g
Yeast
1.18 g
Oil
8.85 g
Saved Dough Batch History
TimestampDough BallsFlour (g)Water (g)Action
No saved dough recipes.
Pizza Style Hydration Benchmark
StyleHydrationOven Temp
Neapolitan60% - 63%450°C - 500°C
New York63% - 66%290°C - 340°C
Detroit Deep Dish68% - 73%260°C - 290°C
Baker's % Principles

Flour is always 100%. All other ingredients are scaled relative to flour mass.

Flour Formula

Flour = Total Weight / (1 + Hydration% + Salt% + Yeast% + Oil%)

FAQs

Why use baker's percentage?
Allows scaling dough batch size while maintaining exact flour hydration ratios.

Video Export Bitrate & File Size Calculator

Predict export file sizes (MB/GB) across codecs.

Output File Size
5.19 GB
Total Data Rate
55.32 Mbps
Duration
750 sec
Saved Export History
TimestampBitrateFile SizeAction
No saved video exports.
Streaming Platform Bitrate Targets
Platform1080p Target4K Target
YouTube SDR8 - 10 Mbps44 - 56 Mbps
TikTok / Reels10 - 15 MbpsN/A
ProRes 422 HQ220 Mbps880 Mbps
MB vs MiB

Decimal MB (1,000,000 B) vs Binary MiB (1,048,576 B).

File Size Formula

File Size (GB) = (Bitrate Mbps × Duration Secs) / 8 / 1000

FAQs

Why does YouTube re-encode video?
YouTube compresses all uploads into VP9/AV1 codecs for efficient streaming.

Depth of Field & Optics Calculator

Calculate hyperfocal distance and near/far focus limits.

Optics Inputs
Hyperfocal Distance
30.86 m
Near Limit
2.69 m
Total DOF
0.70 m
Saved Optics History
TimestampHyperfocalTotal DOFAction
No saved optics calculations.
Sensor Size & Circle of Confusion (CoC) Reference
Sensor FormatCrop FactorCoC Standard
Full Frame (35mm)1.0x0.029 mm
APS-C (Sony/Fuji/Nikon)1.5x0.019 mm
Micro Four Thirds2.0x0.015 mm
Hyperfocal Principle

Focusing at hyperfocal distance yields acceptable sharpness from half that distance to infinity.

Hyperfocal Formula

H = (focal_length² / (aperture × CoC)) + focal_length

FAQs

What is Circle of Confusion?
The maximum blur point size rendered on a sensor that still appears sharp to the human eye.

ND Filter & Camera Exposure Calculator

Calculate target shutter speeds for long exposure photography across 1 to 15 ND filter stops.

Exposure & Filter Parameters
Target Exposure Duration
4.10 sec
Standard tripod exposure
EV Reduction
-10 EV
Filter Factor
1024x (ND1000)
Saved ND Filter History
TimestampBase SpeedFilterTarget SpeedAction
No saved exposure calculations.
ND Filter Optical Density & Factor Reference
StopsOptical DensityND NumberFilter Factor
1 Stop0.3ND22x
3 Stops0.9ND88x
6 Stops1.8ND6464x
10 Stops3.0ND10001024x
15 Stops4.5ND3276832768x
Long Exposure & Reciprocity Guidelines

Bulb Mode: Required for exposures exceeding 30 seconds on most DSLR & mirrorless bodies.

Sensor Reciprocity: Digital sensors do not suffer film reciprocity failure, but long exposures over 60s generate thermal sensor noise. Turn on Long Exposure NR.

ND Filter Exposure Formula

Target Shutter Speed = Base Speed (secs) × (2 ^ ND_Stops)

Frequently Asked Questions

Why use a 10-stop ND filter?
10-stop ND filters blur moving water into smooth silk and turn moving crowds invisible during broad daylight.

Aspect Ratio & Resolution Converter

Convert pixels and megapixels.

Aspect Ratio
16:9 8.29 MP
Saved Resolution History
TimestampResolutionRatioAction
No saved aspect ratios.
Standard Display Resolutions Reference
StandardPixelsMegapixels
4K UHD3840 x 21608.29 MP
1440p QHD2560 x 14403.69 MP
1080p Full HD1920 x 10802.07 MP
9:16 Vertical1080 x 19202.07 MP
Proportion Rules

Locking aspect ratio scales height automatically based on width changes.

Megapixel Formula

Megapixels = (Width × Height) / 1,000,000

FAQs

What is aspect ratio?
The proportional relationship between an image's width and height.

Audio File Size & Bitrate Estimator

Calculate uncompressed WAV, MP3, AAC, and FLAC audio file sizes across sample rates and bit depths.

Audio Format Parameters
mins
secs
Estimated Output Size
37.04 MB
Uncompressed WAV: 37.04 MB
Audio Bitrate
1,411 kbps
Duration
210 sec
Saved Audio Calculation History
TimestampFormatBitrateFile SizeAction
No saved audio calculations.
Audio Industry Standard Specifications
Use CaseSample RateBit DepthUncompressed Bitrate
CD Redbook Audio44.1 kHz16-bit1,411 kbps Stereo
Film & Video Broadcast48.0 kHz24-bit2,304 kbps Stereo
High-Res Studio Master96.0 kHz24-bit4,608 kbps Stereo
Lossless vs Lossy Compression

Lossless (FLAC/ALAC): Compresses audio data down to 50%–60% of original WAV size without discarding dynamic audio frequencies.

Lossy (MP3/AAC): Discards psychoacoustically masked frequencies to achieve 80%–90% size reductions.

Audio Bitrate Formula

Bitrate (bps) = Sample Rate (Hz) × Bit Depth × Channels

Frequently Asked Questions

Why is 48kHz standard for video editing?
48kHz divides evenly into video frame rates (24, 25, 30, 60 fps) without audio sample drift over long timelines.

TDEE & Recomp Macro Splitter

BMR, TDEE, and daily macro Targets.

Daily Calorie Target
2,485 kcal
Protein
248 g
Carbs
217 g
Saved Macro History
TimestampCaloriesProteinAction
No saved macro plans.
Macronutrient Energy Density Table
MacroEnergy DensityRecommended Split
Protein4 kcal / gram1.8g - 2.4g per kg
Carbohydrates4 kcal / gram30% - 50% calories
Dietary Fats9 kcal / gram20% - 30% calories
MPS Target

High protein during deficits preserves lean muscle mass during weight loss.

Mifflin-St Jeor Formula

BMR = (10 × weight_kg) + (6.25 × height_cm) - (5 × age) + 5

FAQs

What is recomp?
Building muscle while losing fat simultaneously in a maintenance or slight deficit.

1RM Strength Matrix

Estimated 1-rep max and percentage table.

Estimated 1RM
116.3 kg
% 1RMLoadReps
Saved 1RM History
TimestampLiftEst 1RMAction
No saved 1RM records.
Strength & Training Rep Range Matrix
Goal% 1RM RangeRep Target
Maximal Strength85% - 100%1 - 5 reps
Hypertrophy (Muscle)70% - 85%6 - 12 reps
Muscular Endurance60% - 70%12 - 20 reps
Epley vs Brzycki

Epley scales linearly; Brzycki adjusts for higher rep sets under 10 reps.

1RM Formula

Epley: Weight × (1 + Reps/30) | Brzycki: Weight × (36 / (37 - Reps))

FAQs

How accurate is 1RM estimation?
Most accurate when rep count performed is between 2 and 6 reps.

FFMI & Maximum Muscular Potential Calculator

Calculate Fat-Free Mass Index (FFMI), height-normalized FFMI, and natural genetic muscular ceiling.

Body Composition Parameters
Normalized FFMI Score
21.8 Score
Category: Above Average Muscularity
Lean Body Mass (LBM)
70.5 kg
Max Natural LBM Limit
79.4 kg
Saved FFMI History
TimestampNormalized FFMILBMCategoryAction
No saved FFMI calculations.
Normalized FFMI Score Rating Scale
Male ScoreFemale ScoreMuscularity Classification
18.0 - 19.915.0 - 16.9Average / Untrained
20.0 - 21.917.0 - 18.9Above Average / Substantial Build
22.0 - 23.919.0 - 20.9Excellent / Advanced Natural Athlete
24.0 - 25.021.0 - 22.0Peak Natural Limit (Superior Genetics)
> 25.0> 22.0Suspicious / Enhanced Limit
Kouri et al. 1995 Natural Ceiling Benchmark

Natural Limit: Studies of pre-steroid era Mr. America winners (1939–1959) established a mean normalized FFMI of 25.4.

Height Normalization: Normalization adjusts for tall lifters who naturally carry higher total fat-free mass due to bone leverage.

Normalized FFMI Formula

Normalized FFMI = [LBM_kg / (Height_m²)] + 6.1 × (1.8 - Height_m)

Frequently Asked Questions

What is Fat-Free Mass Index (FFMI)?
FFMI is a metric used to evaluate muscle mass relative to height, independent of body fat percentage.

US Navy Body Fat % Estimator

Estimate body fat percentage using circumferences.

Estimated Body Fat
Fat Mass
Lean Mass
Saved Body Fat History
TimestampBody Fat %Fat MassAction
No saved body fat runs.
Body Fat % Fitness Categories Reference
CategoryMen BF%Women BF%
Essential Fat2% - 5%10% - 13%
Athletes6% - 13%14% - 20%
Fitness14% - 17%21% - 24%
Average18% - 24%25% - 31%
Measurement Tips

Measure waist around navel horizontally and neck just below larynx.

US Navy Male Formula

BF% = 86.010 × log10(waist - neck) - 70.041 × log10(height) + 36.76

FAQs

How accurate is the US Navy method?
Within 3% to 4% margin of error compared to DEXA scans.

Stock Average Down & Break-Even Calculator

Calculate combined cost basis.

New Average Price
$125.00 USD
Total Shares
200 shares
Total Cost
$25,000.00
Saved Positions
TimestampSharesNew AvgAction
No saved positions.
Dollar-Cost Averaging Rules of Thumb
StrategyTranche AllocationRisk Profile
Equal Dollar DCAFixed $ amount per buyLow Risk
Pyramid AveragingLarger $ buys on deeper dropsMedium Risk
Risk Warning

Only average down on high-conviction quality assets with solid fundamentals.

Average Price Formula

New Avg = Total Capital Invested / Total Shares Owned

FAQs

What is averaging down?
Buying additional shares of a stock after its price drops to lower your overall breakeven cost basis.

Dividend Yield & DRIP Compounding Forecast

Project long-term compound growth.

Projected Portfolio
$104,280 USD
Annual Income
$5,420 / yr
Out-of-Pocket
$70,000
Saved DRIP Forecasts
TimestampPortfolio ValueAnnual IncomeAction
No saved forecasts.
Historical Market Benchmarks
Asset ClassAvg YieldAvg Annual Return
S&P 500 Index1.5% - 1.8%9.8% / yr
Dividend Aristocrats2.5% - 3.5%10.2% / yr
High-Yield REITs4.5% - 6.5%8.5% / yr
DRIP Power

Reinvesting dividends accelerates portfolio growth exponentially via compounding.

DRIP Compounding Formula

Value_Year_N = (Value_Prev + Annual_Contrib + Dividends) × (1 + Growth%)

FAQs

What is DRIP?
Dividend Reinvestment Plan - automatically using paid cash dividends to purchase additional shares.